1.
What is true about the graphs of
y
= 2
x
2
and
y
= -2
x
2
?
A.
y
= 2
x
2
opens downward and
y
= -2
x
2
opens upward.
B.
y
= 2
x
2
opens to the left and
y
= -2
x
2
opens to the right.
C.
y
= 2
x
2
opens upward and
y
= -2
x
2
opens downward.
D.
y
= 2
x
2
opens to the right and
y
= -2
x
2
opens to the left.
Hint
2.
Which is the graph of the equation
y
= 2
x
2
- 1?
A.
B.
C.
D.
Hint
3.
What is the multiplicative inverse of
x
?
A.
B.
1 ×
x
C.
x
D.
x
× 1
Hint
4.
Find the graph of
.
A.
B.
C.
D.
Hint
5.
Use the graph to find the positive solution to 475 = 4.9
x
2.
A.
x
= 9.3
B.
x
= 8.9
C.
x
= 8.1
D.
x
= 9.8
Hint