11.
W rite
a n
e quation
f or
e ach
g raph
g iven.
(a)
_ _____________________
(b)
_ ____________________
12.
E valuate.
S how
a ll
w ork.
(a)
5x(x − 2) when x = 6
− 4y when y = −2
(c)
(z + 3)
when z = 1
(b)
3y
2
3
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− 5x + 4 ,
w hat
i s
y
w hen
x
=
-‐ 3?
(d)
I f
y
=
2 x+3,
w hat
i s
y
w hen
x
=
7 ?
(e)
I f
y
=
x
2
____________________________________
__________________________________________
14.
S implify
e ach
n umerical
e xpression
c ompletely.
( )
(a)
−2
(b)
−2
4
(c)
54
(d)
3 20
4
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