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Name Date ]ÿ,ÿL Iltÿ
"Test 2.2 REVIEW- Algebra 1 - MPJH
Period
°x
Y
i -I,-i- ÿ :,-g$iAqZ -
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q2. What is the x-intercept of the equation 2x + 4y = 7? ÿ /
3. At Jennifer's Jet Ski's, the cost for renting a jet ski is $45 plus $35 per day. Thetotal cost can be represented by the equation y = 45 + 35x where x is the numberof days for which the jet ski has been rented and y is the total cost of renting thejet ski. What is the y-intercept of this equation?
. Rodney's Rides car rental office charges $20 per day and $0.20 for each mile torent a small economy car. Grant plans to rent a car for a 2-day weekend vacation.
Which of the following represents the number of miles, m, Grant can drive if he canspend up to $120 on a car rental for this vacation?
A 0 < m < 120 ,ÿ, ÿ" (: 20 < m_< 120
B 0 < m < 500<(ÿ0)]ÿ%tJ 00 < m.<_ 400
SW..,j 0,.5. Write the equation of a vertical line passing through the point (5, 8)
6 ! ÿ ]_. , ...,,,... w 'll
,0}
6. Write the equation of a horizontal line passing through the point (-3, -7)
, What is the y-intercept of the graph of 6x + 3¥ = 127 V -- H
, Decide which of the two points lies on the graph of the line.
x- av = J.= q'{ÿ.evt laF,6/a (9,,) b. (<-2) q- ÿ 6)ÿ 1;ÿ
o ,/eÿ cI-3; ÿ :-,6¢IFL
(o-I- ÿ --- I ;u
i#
cg x "- g = IO X ÷-30- 311 .,-- 2-a
at ; D i° ÿ 1 .a ÿ i.'..,6, {t
1 Ivÿ the proportion: a.
9. Solve the equation for y. a. + y= 11 b. 10ÿ-5y= 25
J -7 ...........-"5 ÿ5
710. Make a table and find the range of y = ] x + 3 if the domain is -3, -1, O, 3.
__Lÿ_* ±ÿ_ yv[ÿ_
11.Identify_ÿ.ÿrlÿof tttlÿ function with the given domain.tÿ+,
>oIÿ<-P, ÿ ÿj; 2]J}ÿ:- ÿ,--x +q.... ÿ -"5 ....
x>O
tE]3,-<-_.ÿ
c.t.-osÿ m,4-hr.,tv
p , ' :OldI
6x- 3y = 9; domainx< 1 L,!=ÿj)4 ....v,
<ÿt='(+)" ÿ: I'ÿ--"1 ÿ2..(-.ÿ).-7 - 9
b (-ÿ-'% ÿ4' ÿ-'ÿ7ÿ
60 : tI, q
13. Write each equation in standard form,
qx #BT-Ca.-4 + 2y= 8x
L>:=: ...... J
b, 10x-12 = 8y
r-i;-y ..... 2 ..............ÿ
14. The table below shows valuesof y as a function of x. Which linearequation best describes the relationshipbetween x and y? ÿ#ÿ,,:,¢
17. Find the value of x so thatthe function has the givenvalue.
A y=6x
&[B }/= 4x+ 4
c y=mx+6 j%,
D y=Sx ÿOz
16. The owner of a convenience storerecorded the number of customers in theStore from 6:00am to ll:00am who wereserved coffee and the number of pots ofcoffee that were consumer. Write anequation that describes this function.
20. A mechanic charges C(t) dollarsto install a new distributor in a car.The formula
c(t) = 16t + 160
IZlZIZ
is used to find the cost ofinstallation, where t is the numberof hours of labor performed by themechanic. What does the sloperepresent?
0 b4 P*" #':V
ku'v (7.¢' ÿ'ÿ M.
21. The graph below represents theamount of money Liz borrowedfrom her father and the number ofmonthly payments needed to payit back.
23. For four consecutive years, Darin
recorded the height of a tree heplanted.
.,,ÿ
i.+ÿ,
He plotted the height of the treeat the same Lime every, summer
and drew a line connecting theprevious years data point to thenew data point, as shown on thegraph below.
A. What does the slope of the
.ÿ, ÿ graph represent in the situation? ,ÿ
B. What does the y-intercept in the ÿ- ÿ, ..D (2 (.. !<_
graph represent in this situation? [.
" C. If LIz continues to pay her
father at the same rate, when willshe finish paying her father off2
. . .-7--
, ¢i i7 7? -O 1 2
22. Grace is saving money in a savingsaccouÿe stÿ3x,ÿ with $5, andadds (_$v3.eeÿwe.els.} as shown onthe graph below.
4
Which of the following is a correctinterpretation of the slope of the line onDarin's graph?
A The tree grew 1 foot in four years
B The tree grew 1.5 feet in six years
)The tree grew 2 feet in six months
D The tree grew 4 feet in six months
{,.;R &(ÿb,7ÿ &ÿ\q{N(;ÿ OVER !"Iÿi1-ÿy
L2
s
N 42:
I 2 ÿ 4
What is the slope of the line connectingthe points on the graph?
04, Yÿ (X'4.ÿ5 ÿ /-{se ,ÿ.....,.,
rw tq ---3-- "ZiJo
24. Olsi's Algebra teacher assigned 50homework problems. The table belowcompares the number of homeworkproblems Olsi has completed to thepercentage of the homework he has yet
to do. ÿ,4(:> 0{9(: I ÿ.ÿ.ÿ ÿ,ÿ ("
,o,.°, .......................................................... v_.,Loo,o Cslol "'
,.(,ÿ ................ .,,,.,.!ÿ,ÿz ..... )
.':; ÿ 248
What is the slope of the line that fits
these data? _ ÿoo ÿ-ÿ.ÿ -'J ÿ2-' --/ÿ)-ao o._ .d --q--I ....... ---
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