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What are the x- and y-intercepts of the function graphed at the right ?
a. (0,2) and (0,3)
b. (2,0) and (0,-3)
c. (0,-2) and (3,0)
d. (0,2) and (3,0)
5.1 warm-up
3
-3 -2 -1 0 1 2 3 x
-3
12
3 y
6.2 Properties of Parallelograms
Parallelograms
Opposite sides are congruentOpposite angles are congruent
Diagonals bisect each other
Pardekooper
Lets try some problems
x0
1270
Find x in a Parallelogram:
Opposite angles are congruent x=127
PardekooperSame side angles are supplementary
y0
180-127y=530
Lets try some problems
x0
550
Find x:
x0
550
Pardekooper
Same side angles are supplementary
X + 55 = 180
X = 180 - 55
X = 125
Lets try some problems
2x+4
7x-1Find x:
Remember opposite sides are congruent.
2x + 4 = 10-4 -4
2x = 6
10
6x+2
2 2x = 3
Pardekooper
Now find the sides
2x+4
7x-1Find x:
6x + 2 6(3) + 2
10
6x+2
18 + 2
20
7x - 1
7(3) - 1 21 - 1
20
2x + 4 2(3) + 4
6 + 4
10
10
20
20
Pardekooper
Just one more itemIf three (or more) parallel
lines cut off congruent segments on one
transversal, then they will cut off congruent
segments on every transversal.
Pardekooper
Here comes the assignment.
Pardekooper
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