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196 Chapter 3 Exponential and Logarithmic Functions
26. 5.5e 200 7.611 10 87 0
27.
f x 5 2 x
28.
f x 5 2 x
x 2 1 0 1 2
x 2 1 0 1 2
f x
0.16 0.4 1 2.5 6.25
f x
6.25 2.5 1 0.4 0.16
y
y
9
8
7
6
5
4
3
2
1
−5 −4 −3 −2 −1 1 2 3 4 5
x
9
8
7
6
5
4
3
1
−5 −4 −3 −2 −1 1 2 3 4 5
x
Asymptote: y 0
Asymptote: y 0
29.
f x 6 x
30.
f x 2 x1
x 2 1 0 1 2
x 1 0 1 2 3
f x
0.03 0.17 1 6 36
f x
0.25 0.5 1 2 4
y
y
9
8
7
6
5
4
3
2
1
−5 −4 −3 −2 −1 1 2 3 4 5
x
9
8
7
6
5
4
3
2
1
−5 −4 −3 −2 −1 1 2 3 4 5
x
Asymptote: y 0
Asymptote: y 0
31.
f x 3 x2
x 3 2 1 0 1
f x 0.33 1 3 9 27
9
8
7
3
2
1
−6 −5 −4 −3 −2 −1 1 2 3 4
Asymptote: y 0
y
x
32.
f x 4 x3 3
x 0 1 2 3 4 5
f x 3.016 3.063 3.25 4 7 19
9
8
7
6
5
4
2
1
−5 −4 −3 −2 −1 1 2 3 4 5
Asymptote: y 3
y
x
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