AnswersFL-1200330-Algebra 2 CRModeling with Exponential and Logarithmic Equations

Modeling with Exponential and Logarithmic Equations Answers

27 verified answers7 views
21
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How would you explain the relationship between the real zero(s) of the function and x-intercept(s) of the graph?

A
Since the graph crosses the x-axis at x = – 2, the function has a real zero of x = – 2.
Option A
B
Since the graph never crosses the x-axis, the function has no real zeros.
Option B
C
Since the graph eventually crosses the x-axis, the function has a real zero.
Option C
D
Since the graph crosses the y-axis at , the function results in a real zero of x = ?.
Option D
22
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Which equation has real zeros corresponding to the x-intercepts of the graph?

A
y = log3(x) – 1
B
y = 3x – 3
C
y = –3(x – 1) + 3
D
y = log3(2x) – 2
23

b =

Answer:

37.673

24

The loudness of a compactor is 94 dB. Its sound intensity is about ✔ 0.00250.00430.0081.

A
✔ 0.0025
B
0.0043
C
0.0081
25

b =

Answer:

37.673

26

Using the graphing calculator, estimate to the nearest day how long it will take the corn to reach 6 feet tall: days

A
45
B
51
C
63
D
72
27

Using the graphing calculator, estimate to the nearest day how long it will take the corn to reach 6 feet tall: 45✔ 516372

A
45
B
✔ 51
C
63
D
72

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Modeling with Exponential and Logarithmic Equations