1.
Which is the graph of
y
= 2.5
x
?
A.
B.
C.
D.
Hint
2.
What is the
y
-intercept of the graph of
y
= 4
x
- 2
?
A.
-1
B.
-2
C.
0
D.
Hint
3.
For equations of the form
y
=
a
x
, where
a
is a constant, what is true about
a
if the
y
-values change little for small values of
x
, but increase quickly for large
x
values?
A.
0 <
a
< 1
B.
a
= 1
C.
–1 <
a
< 0
D.
a
> 1
Hint
4.
Use a graph in order to approximate
.
A.
0.0089
B.
133.4
C.
112.6
D.
0.0045
Hint
5.
Use a graph to approximate 3
1.2
.
A.
0.27
B.
3.7
C.
5.4
D.
3.12
Hint