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Chapter 2 Test Form A Name Ratti & McWaters, College Algebra and Trigonometry and Precalculus: A Right Triangle Approach, 2e
1) Find the distance and midpoint between ( )5,6− and ( )2, 4 .− 1)
2) Write the equation, in standard form, for the circle graphed below.
2)
3) Find the equation of the line passing through ( )8, 7− that is perpendicular to the
line 10 15 22.x y− = 3)
4) Find the domain of ( )2
10 2.
4 32
xf x
x x
− −=
+ −
4)
5) Given ( )
2 8 if 4
2 4if 4 5,
311 if 5
x x x
xf x x
xx
⎧⎪− + ≤−⎪⎪⎪⎪ +⎪= − < ≤⎨⎪ +⎪⎪⎪ >⎪⎪⎩
evaluate ( ) ( )4 , 5 ,f f− and ( )10 .f 5)
6) State the domain and range of the function graphed below.
6)
31
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Chapter 2 Test Form A Name Ratti & McWaters, College Algebra and Trigonometry and Precalculus: A Right Triangle Approach, 2e
7) State the x - and y -intercepts of ( ) 2 10 16.f x x x= + + 7)
8) When is the function graphed below increasing or decreasing? What are the coordinates of the relative minimum and maximum of the function?
8)
9) Test 2
34 2
4xy
x y=
+ for symmetry with respect to the x -axis, the y -axis, and
the origin. 9)
10) Given ( )2
2
2 3
30
xf x
x
− +=
− and ( ) 5 10,g x x= + find ( )( )f g x and its
domain. 10)
11) Given the graph of ( ),f x draw the graph of 1
2 .3
f x⎛ ⎞⎟⎜− − ⎟⎜ ⎟⎜⎝ ⎠
11)
12) Find the equation of the circle, in standard form, for 2 210 14 58 0x x y y− + + + = 12)
32
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Chapter 2 Test Form A Name Ratti & McWaters, College Algebra and Trigonometry and Precalculus: A Right Triangle Approach, 2e
13) Write the formula for the piecewise function graphed below.
13)
14) Find the difference quotient for ( ) 35 .f x x x= − 14)
15) Given ( ) 3 7,
2 8
xf x
x
−=
+ find ( )1f x− and the range of ( ).f x
15)
16) A manufacturing company purchases a milling machine and depreciates its value linearly. The machine is worth $10,200 after 3 years and $9,000 after 5 years. Find a linear equation giving the value, V , of the machine t years after purchase. What was the original value of the machine? When will the machine have no value? 16)
33
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Chapter 2 Test Form B Name Ratti & McWaters, College Algebra and Trigonometry and Precalculus: A Right Triangle Approach, 2e
1) Find the distance and midpoint between ( )7, 8− and ( )3,5 .− 1)
2) Write the equation, in standard form, for the circle graphed below.
2)
3) Find the equation of the line passing through ( )9, 2− − that is perpendicular to
the line 12 20 17.x y+ = 3)
4) Find the domain of ( )2
3 12.
56
xf x
x x
+=
+ −
4)
5) Given ( ) 3 2
14if 5
2
2 if 5 3,
6 if 3
xx
x
f x x x x
x
⎧ −⎪⎪ <−⎪⎪ −⎪⎪⎪= − + − ≤ <⎨⎪⎪⎪− ≥⎪⎪⎪⎪⎩
evaluate ( ) ( )8 , 5 ,f f− − and ( )3 .f 5)
6) State the domain and range of the function graphed below.
6)
34
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Chapter 2 Test Form B Name Ratti & McWaters, College Algebra and Trigonometry and Precalculus: A Right Triangle Approach, 2e
7) State the x - and y -intercepts of 2 15 36.y x x= − + 7)
8) When is the function graphed below increasing or decreasing? What are the coordinates of the relative minimum and maximum of the function?
8)
9) Test 3
34 2
4xy
x y=
+ for symmetry with respect to the x -axis, the y -axis, and
the origin. 9)
10) Given ( )2
2
7
2 30
xf x
x
− +=
− and ( ) 3 21,g x x= + find ( )( )f g x and its
domain. 10)
11) Given the graph of ( ),f x draw the graph of 1 1
.3 2
f x⎛ ⎞⎟⎜− − ⎟⎜ ⎟⎜⎝ ⎠
11)
12) Find the equation of the circle, in standard form, for 2 210 14 58 0x x y y+ + − + = 12)
35
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Chapter 2 Test Form B Name Ratti & McWaters, College Algebra and Trigonometry and Precalculus: A Right Triangle Approach, 2e
13) Write the formula for the piecewise function graphed below.
13)
14) Find the difference quotient for ( ) 3 4 .f x x x= − 14)
15) Given ( ) 5 3,
4 8
xf x
x
+=
− find ( )1f x− and the range of ( ).f x
15)
16) A warehouse purchases a forklift and depreciates its value linearly. The forklift is worth $35,000 after 4 years and $22,500 after 9 years. Find a linear equation giving the value, V , of the forklift t years after purchase. What was the original value of the forklift? When will the forklift have no value? 16)
36
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Chapter 2 Test Form C Name Ratti & McWaters, College Algebra and Trigonometry and Precalculus: A Right Triangle Approach, 2e
1) Find the distance and midpoint between ( )9,7− and ( )2, 5 .− 1)
2) Write the equation, in standard form, for the circle graphed below.
2)
3) Find the equation of the line passing through ( )16,9− that is perpendicular to
the line 16 14 23.x y− + = 3)
4) Find the domain of ( )2
2 12.
2 35
xf x
x x
+=
+ −
4)
5) Given ( ) 2
13 if 2
9 7 if 2 7 ,
11if 7
1
x
f x x x x
xx
x
⎧⎪⎪⎪ <−⎪⎪⎪⎪= − + + − ≤ <⎨⎪⎪⎪ +⎪ ≥⎪⎪ −⎪⎩
evaluate ( ) ( )10 , 2 ,f f− − and ( )7 .f 5)
6) State the domain and range of the function graphed below.
6)
37
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Chapter 2 Test Form C Name Ratti & McWaters, College Algebra and Trigonometry and Precalculus: A Right Triangle Approach, 2e
7) State the x - and y -intercepts of 3 2 64.y x= − 7)
8) When is the function graphed below increasing or decreasing? What are the coordinates of the relative minimum and maximum of the function?
8)
9) Test 4
23
2 5
7
yy
x
+=
− for symmetry with respect to the x -axis, the y -axis, and
the origin. 9)
10) Given ( )2
2
4
2 42
xf x
x
− +=
− and ( ) 3 15,g x x= + find ( )( )f g x and its
domain. 10)
11) Given the graph of ( ),f x draw the graph of ( )3 2 .f x− −
11)
12) Find the equation of the circle, in standard form, for 2 212 18 92 0x x y y− + + + = 12)
38
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Chapter 2 Test Form C Name Ratti & McWaters, College Algebra and Trigonometry and Precalculus: A Right Triangle Approach, 2e
13) Write the formula for the piecewise function graphed below.
13)
14) Find the difference quotient for ( ) 3 5 .f x x x= − 14)
15) Given ( ) 4 7,
3 12
xf x
x
−=
− find ( )1f x− and the range of ( ).f x
15)
16) A garage purchases a smog testing machine and depreciates its value linearly. The machine is worth $6,050 after 3 years and $4,950 after 5 years. Find a linear equation giving the value, V , of the machine t years after purchase. What was the original value of the milling machine? When will the machine have no value? 16)
39
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Chapter 2 Test Form D Name Ratti & McWaters, College Algebra and Trigonometry and Precalculus: A Right Triangle Approach, 2e
1) Find the distance and midpoint between ( )13, 16− and ( )2,8 .− 1)
2) Write the equation, in standard form, for the circle graphed below.
2)
3) Find the equation of the line passing through ( )12,5 that is perpendicular to the
line 18 30 53.x y+ = 3)
4) Find the domain of ( )2
3 15.
4 21
xf x
x x
− +=
− −
4)
5) Given ( )
2 32 if 4
21 if 4 11,
3 5if 11
7
x x x
f x x
xx
x
⎧⎪⎪⎪− − ≤−⎪⎪⎪⎪= − − < ≤⎨⎪⎪⎪ −⎪ >⎪⎪ −⎪⎩
evaluate ( ) ( )4 , 11 ,f f− and ( )15 .f 5)
6) State the domain and range of the function graphed below.
6)
40
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Chapter 2 Test Form D Name Ratti & McWaters, College Algebra and Trigonometry and Precalculus: A Right Triangle Approach, 2e
7) State the x - and y -intercepts of 3 2 7 8.y x x= − − 7)
8) When is the function graphed below increasing or decreasing? What are the coordinates of the relative minimum and maximum of the function?
8)
9) Test 4
33
7yx
y x=
− for symmetry with respect to the x -axis, the y -axis, and the
origin. 9)
10) Given ( )2
2
3 5
48
xf x
x
−=
− and ( ) 4 32,g x x= + find ( )( )f g x and its domain.
10)
11) Given the graph of ( ),f x draw the graph of ( )12 .
3f x− −
11)
12) Find the equation of the circle, in standard form, for 2 220 6 60 0x x y y+ + − + = 12)
41
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Chapter 2 Test Form D Name Ratti & McWaters, College Algebra and Trigonometry and Precalculus: A Right Triangle Approach, 2e
13) Write the formula for the piecewise function graphed below.
13)
14) Find the difference quotient for ( ) 37 .f x x x= − 14)
15) Given ( ) 7 6,
5 15
xf x
x
+=
+ find ( )1f x− and the range of ( ).f x
15)
16) A publisher purchases a printing press and depreciates its value linearly. The printing press is worth $14,250 after 5 years and $8,250 after 13 years. Find a linear equation giving the value, V , of the printing press t years after purchase. What was the original value of the printing press? When will the printing press have no value? 16)
42
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Chapter 2 Test Form E Name Ratti & McWaters, College Algebra and Trigonometry and Precalculus: A Right Triangle Approach, 2e
For Exercises 1–2, use the points ( )6,7− and ( )2, 4 .−
1) Find the distance between the points.
a) 185 b) 5 c) 133 d) 7
1)
2) Find the midpoint between the points.
a) 11
4,2
⎛ ⎞⎟⎜ − ⎟⎜ ⎟⎜⎝ ⎠ b)
32,
2
⎛ ⎞⎟⎜ − ⎟⎜ ⎟⎜⎝ ⎠ c)
114,
2
⎛ ⎞⎟⎜− ⎟⎜ ⎟⎜⎝ ⎠ d)
32,
2
⎛ ⎞⎟⎜− ⎟⎜ ⎟⎜⎝ ⎠
2)
3) Write the equation, in standard form, for the
circle graphed to the right.
a) ( ) ( )2 22 3 36x y− + − =
b) ( ) ( )2 22 3 36x y+ + + =
c) ( ) ( )2 22 3 6x y− + − =
d) ( ) ( )2 22 3 6x y+ + + =
3)
4) Find the equation of the line passing through ( )12, 7− that is perpendicular to the line
14 21 17.x y− + =−
a) 3
252
y x= − b) 3
112
y x=− + c) 2
153
y x= − d) 2
13
y x= +
4)
5) Find the domain of ( )2
3 15.
4 21
xf x
x x
− +=
− −
a) ( ) ( ], 3 3,5−∞ − ∪ − b) ( ],5−∞
c) [ )5,−∞ d) [ ) ( )5,7 7,∪ ∞
5)
6) State the x - and y - intercepts of 2 15 36.y x x= + +
a) ( )( ) ( )0, 3 0, 12 , 6,0− − b) ( )( ) ( )3,0 12,0 , 0,6− −
c) ( )( ) ( )0, 3 0, 12 , 36,0− − d) ( )( ) ( )0, 3 0, 12 , 36,0− −
6)
43
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Chapter 2 Test Form E Name Ratti & McWaters, College Algebra and Trigonometry and Precalculus: A Right Triangle Approach, 2e
For Exercises 7–9, use ( )
2 32 if 5
3 5if 5 9.
78 if 9
x x x
xf x x
xx
⎧⎪− − ≤−⎪⎪⎪⎪ −⎪= − < ≤⎨⎪ −⎪⎪⎪− >⎪⎪⎩
7) Find ( )5 .f −
a) 11− b) 225 c) 5
3− d) 275−
7)
8) Find ( )9 .f
a) 1539− b) 8− c) 121
7 d) 11−
8)
9) Find ( )11 .f
a) 2783− b) 8− c) 7− d) 149
7
9)
For Exercises 10–11, use the graph to the right.
10) State the domain of the function.
a) [ ) [ )10, 4 1,− − ∪ − ∞
b) [ ] [ )6, 2 4,− ∪ ∞
c) ( ] ( )10, 4 1,− − ∪ − ∞
d) ( ) ( )6,2 4,− ∪ ∞
11) State the range of the function. a) ( ),−∞ ∞
b) ( ] [ )4, 2 4,− ∪ ∞
c) [ ] [ )6, 2 4,− ∪ ∞
d) [ ) [ )10, 4 1,− − ∪ − ∞
10) 11)
12) Find the equation of the circle, in standard form, for 2 210 8 23 0.x x y y− + + − =
a) ( ) ( )2 25 4 64x y− + + = b) ( ) ( )2 2
10 8 23x y− + + =
c) ( ) ( )2 25 4 64x y+ + + = d) ( ) ( )2 2
5 4 8x y− + + =
12)
44
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Chapter 2 Test Form E Name Ratti & McWaters, College Algebra and Trigonometry and Precalculus: A Right Triangle Approach, 2e
For Exercises 13–15, use the graph to the right.
13) When is the function increasing or decreasing?
a) Decreasing( ) ( ), 5 4, ;−∞ − ∪ ∞
Increasing: ( )5,4−
b) Decreasing: ( )5,4−
Increasing: ( ) ( ), 5 4, ;−∞ − ∪ ∞
c) Decreasing: ( )7,5 ;−
Increasing: ( ) ( ), 7 5,−∞ − ∪ ∞
d) Decreasing: ( ) ( ), 7 5, ;−∞ − ∪ ∞
Increasing: ( )7,5 ;−
14) What are the coordinates of the relative
minimum of the function? a) ( )8,8− b) ( )4,6−
c) ( )3, 7− d) ( )7,10
15) What are the coordinates of the relative
maximum of the function? a) ( )8,8− b) ( )4,6−
c) ( )3, 7− d) ( )7,10
13) 14) 15)
16) Test 3
25 2
2yx
x y=
− for symmetry with respect to the x -axis, the y -axis, and the origin.
a) x axis b) y axis c) origin d) no symmetry
16)
For Exercises 17–18 use ( )2
2
5 10
30
xf x
x
− +=
− and ( ) 22 2 .g x x= −
17) Find ( )( ).f g x
a) ( )( )2
2
32 674
30
xf g x
x
−=
− b) ( )( ) 5 60
4
xf g x
x
+=
−
c) ( )( ) 5 50
4
xf g x
x
− +=
+ d) ( )( ) 5 60
4
xf g x
x
−=
+
17)
18) What is the domain of ( )( )?f g x
a) [ ) ( )11, 4 4,− − ∪ − ∞ b) [ )11,− ∞
c) ( ]4,11− d) ( ) ( ], 4 4,11−∞ − ∪ −
18)
45
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Chapter 2 Test Form E Name Ratti & McWaters, College Algebra and Trigonometry and Precalculus: A Right Triangle Approach, 2e
19) Given the graph of ( ),f x draw the graph of 1 1
.3 2
f x⎛ ⎞⎟⎜− ⎟⎜ ⎟⎜⎝ ⎠
a) b)
c)
d)
19)
46
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Chapter 2 Test Form E Name Ratti & McWaters, College Algebra and Trigonometry and Precalculus: A Right Triangle Approach, 2e
20) Write the formula for the piecewise function graphed to the right.
a) ( )5 if 3
3 5 7 if 3
xf x
x x
⎧ ≤⎪⎪=⎨⎪ − − >⎪⎩
b) ( )5 if 3
3 5 7 if 3
xf x
x x
⎧ ≤⎪⎪=⎨⎪ + − >⎪⎩
c) ( )5 if 3
3 5 7 if 3
xf x
x x
⎧ <⎪⎪=⎨⎪ − − ≥⎪⎩
d) ( )5 if 3
3 5 7 if 3
xf x
x x
⎧ <⎪⎪=⎨⎪ + − ≥⎪⎩
20)
21) Find the difference quotient for ( ) 2 32 .f x x x= −
a) 2 23 4 3 2x x hx h h+ − + + b) 2 23 4 3 2x x hx h h− + − − +
c) 2 23 4 3 2x x hx h h− + + − + d) 2 23 4 3 2x x hx h h+ + + +
21)
For Exercises 22–23, use ( ) 3 11.
2 8
xf x
x
+=
−
22) Find ( )1f x− .
a) ( )1 8 11
2 3
xf x
x− − −
=−
b) ( )1 2 11
3 8
xf x
x− +
=−
c) ( )1 2 8
3 11
xf x
x− −
=+
d) ( )1 8 11
2 3
xf x
x− +
=−
22)
23) Find the range of ( ).f x
a) 3 3
, ,2 2
⎛ ⎞ ⎛ ⎞⎟ ⎟⎜ ⎜−∞ ∪ ∞⎟ ⎟⎜ ⎜⎟ ⎟⎜ ⎜⎝ ⎠ ⎝ ⎠ b) ( ) ( ), 4 4,−∞ ∪ ∞
c) 11 11
, ,3 3
⎛ ⎞ ⎛ ⎞⎟ ⎟⎜ ⎜−∞ − ∪ ∞⎟ ⎟⎜ ⎜⎟ ⎟⎜ ⎜⎝ ⎠ ⎝ ⎠ d)
2 2, ,3 3
⎛ ⎞ ⎛ ⎞⎟ ⎟⎜ ⎜−∞ ∪ ∞⎟ ⎟⎜ ⎜⎟ ⎟⎜ ⎜⎝ ⎠ ⎝ ⎠
23)
47
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Chapter 2 Test Form E Name Ratti & McWaters, College Algebra and Trigonometry and Precalculus: A Right Triangle Approach, 2e
A flight instructor purchases a small airplane and depreciates its value linearly. The airplane is worth $45,000 after 10 years and $36,000 after 15 years. With this information, answer Exercises 24–26.
24) Find a linear equation giving the value, ,V of the airplane t years after purchase.
a) 1800 18000V t= + b) 1
350001800
V t=− +
c) 1800 45000V t=− + d) 1800 63000V t=− +
24)
25) What was the original value of the airplane?
a) $18,000 b) $70,000 c) $63,000 d) $45,000
25)
26) When will the airplane have no value?
a) 40 years b) 25 years c) 20 years d) 35 years
26)
48
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Chapter 2 Test Form F Name Ratti & McWaters, College Algebra and Trigonometry and Precalculus: A Right Triangle Approach, 2e
For Exercises 1–2, use the points ( )9, 12− and ( )3,5 .−
1) Find the distance between the points.
a) 433 b) 145 c) 505 d) 85
1)
2) Find the midpoint between the points.
a) 7
3,2
⎛ ⎞⎟⎜ − ⎟⎜ ⎟⎜⎝ ⎠ b)
73,
2
⎛ ⎞⎟⎜− ⎟⎜ ⎟⎜⎝ ⎠ c)
176,
2
⎛ ⎞⎟⎜ − ⎟⎜ ⎟⎜⎝ ⎠ d)
176,
2
⎛ ⎞⎟⎜− ⎟⎜ ⎟⎜⎝ ⎠
2)
3) Write the equation, in standard form, for the
circle graphed to the right.
a) ( ) ( )2 22 4 25x y+ + + =
b) ( ) ( )2 22 4 25x y− + − =
c) ( ) ( )2 22 4 5x y+ + + =
d) ( ) ( )2 22 4 5x y− + − =
3)
4) Find the equation of the line passing through ( )21,11− that is perpendicular to the line
15 35 19.x y+ =
a) 3
27
y x=− + b) 3
207
y x= + c) 7
383
y x=− − d) 7
603
y x= +
4)
5) Find the domain of ( )2
4 16.
4 12
xf x
x x
− −=
− −
a) [ ) ( ) ( )4, 2 2,6 6,− − ∪ − ∪ ∞ b) [ )4,− ∞
c) ( ) ( ], 2 2, 4−∞ − ∪ − − d) ( ], 4−∞ −
5)
6) State the x - and y -intercepts of 3 2 6 27.y x x= + −
a) ( )( ) ( )9,0 3,0 , 0,3− b) ( )( ) ( )0,9 0, 3 , 3,0−
c) ( )( ) ( )9,0 3,0 , 0, 3− − d) ( )( ) ( )0, 9 0,3 , 3,0− −
6)
49
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Chapter 2 Test Form F Name Ratti & McWaters, College Algebra and Trigonometry and Precalculus: A Right Triangle Approach, 2e
For Exercises 7–9, use ( ) 2 3
5 if 6
3 if 6 8.
3 5if 8
7 2
x
x x x x
xx
x
⎧⎪⎪⎪− <−⎪⎪⎪⎪= − + − ≤ <⎨⎪⎪⎪ −⎪ ≥⎪⎪ −⎪⎩
7) Find ( )9 .f −
a) 2169− b) 5− c) 32
25− d)
131
7−
7)
8) Find ( )6 .f −
a) 23
19− b) 612− c) 684− d) 5−
8)
9) Find ( )8 .f
a) 19
9− b) 1472 c)
51
7 d) 5−
9)
For Exercises 10–11, use the graph to the right.
10) State the domain of the function.
a) ( ] ( ], 2 4,10−∞ ∪
b) ( ] [ ), 4 1,7−∞ − ∪ −
c) ( ) [ ), 2 4,10−∞ ∪
d) ( ) ( ], 4 1,7−∞ − ∪ −
11) State the range of the function. a) ( ),−∞ ∞
b) ( ] [ ), 4 1,7−∞ − ∪
c) ( ] [ ), 4 1,7−∞ − ∪ −
d) ( ] ( ], 2 4,10−∞ ∪
10) 11)
12) Find the equation of the circle, in standard form, for 2 210 6 2 0.x x y y+ + − − =
a) ( ) ( )2 25 3 6x y+ + − = b) ( ) ( )2 2
5 3 36x y− + + =
c) ( ) ( )2 210 6 2x y+ + − = d) ( ) ( )2 2
5 3 36x y+ + − =
12)
50
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Chapter 2 Test Form F Name Ratti & McWaters, College Algebra and Trigonometry and Precalculus: A Right Triangle Approach, 2e
For Exercises 13–15, use the graph to the right.
13) When is the function increasing or decreasing?
a) Decreasing: ( ) ( ), 4 3, ;−∞ − ∪ ∞
Increasing: ( )4,3−
b) Decreasing: ( )4,3 ;−
Increasing: ( ) ( ), 4 3,−∞ − ∪ ∞
c) Decreasing: ( )7,6 ;−
Increasing: ( ) ( ), 4 3,−∞ − ∪ ∞
d) Decreasing: ( ) ( ), 7 6, ;−∞ − ∪ ∞
Increasing: ( )7,6−
14) What are the coordinates of the relative
minimum of the function? a) ( )8,8− b) ( )4,6−
c) ( )3, 7− d) ( )7,10
15) What are the coordinates of the relative
maximum of the function? a) ( )8,8− b) ( )4,6−
c) ( )3, 7− d) ( )7,10
13) 14) 15)
16) Test 2 2
34
3
8
x yy
x
−=
− for symmetry with respect to the x axis, the y axis, and the origin.
a) x axis b) y axis c) origin d) no symmetry
16)
For Exercises 17–18 use ( )2
2
6
3 9
xf x
x
−=
− + and ( ) 21 3 .g x x= −
17) Find ( )( ).f g x
a) ( )( )2
2
22 69
3
xf g x
x
−=
− b) ( )( ) 5
3 24
xf g x
x
+=
+
c) ( )( ) 5
3 18
xf g x
x
− +=
− d) ( )( ) 5
3 24
xf g x
x
−=
−
17)
18) What is the domain of ( )( )?f g x
a) ( ],7∞ b) ( ) ( ],6 6,7−∞ ∪
c) [ )7,− ∞ d) [ ) ( )7,6 6,− ∪ ∞
18)
51
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Chapter 2 Test Form F Name Ratti & McWaters, College Algebra and Trigonometry and Precalculus: A Right Triangle Approach, 2e
19) Given the graph of ( ),f x draw the graph of ( )12 .
3f x−
a) b)
c)
d)
19)
52