CP Algebra II 2/16/16
7.1 Practice
1. Complete the
f (x) = 3x .
Name_________________________
x
y
table and then graph the exponential growth function
-3
-2
-1
0
1
2
3
a.
Is the graph an increasing or decreasing function? Explain your answer.
b.
Trace or use the table feature on your calculator to fill out the table below.
x
-20
-10
-5
-1
0
1
5
10
20
3x
c.
As the value of x gets very large, what happens to the value of
3x ?
d.
As the value of x gets very small, what happens to the value of
3x ?
e.
Will the value of
f.
Are there any values of x that would make
3x
ever equal 0? Explain your answer.
3x
undefined? Explain your answer.
g.
Graph.
State the domain and range for f(x) =
1. y = 3(2)
x
3x
x
æ 3 öx
y
=
12
3.
ç ÷
è 4ø
æ 1ö
2. y = 4 ç ÷ - 3
è 2ø
4. y = 2x -6
x
5.
æ 3ö
y = 16ç ÷ - 6
è 4ø
7. y = 2
x-3
+5
x
6.
æ 5ö
y = ç ÷ -1
è 3ø
æ 1ö
8. y = -9ç ÷
è 3ø
x+2