Modeling with Exponential and Logarithmic Equations

Question 1

Question 1

Revolt · Accepted Answer

.: 0.004; .: 0.0025

Question 2

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

Revolt · Accepted Answer

0.0025

Question 3

The loudness of a jack hammer is 96 dB. Its sound intensity is about .

Revolt · Accepted Answer

0.004; Selection 1: 0.004; Selection 2: 0.0025

Question 4

The sound intensity of the jack hammer is about times the sound intensity of the compactor.

Revolt · Accepted Answer

1.6

Question 5

The loudness of a pile driver is 112 dB. About how many times the sound intensity of the jackhammer is the sound intensity of a pile driver? Round to the nearest ten.

Revolt · Accepted Answer

40

Question 6

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

Revolt · Accepted Answer

51

Question 7

a = ⇒ -76.204 b =

Revolt · Accepted Answer

⇒ -76.204: 0.814; Part 2: 37.673

Question 8

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

Revolt · Accepted Answer

Since the graph never crosses the x-axis, the function has no real zeros.

Question 9

Which equation has real zeros corresponding to the x-intercepts of the graph?

Revolt · Accepted Answer

y = log3(x) – 1

Question 10

Which equation can you use to solve this problem?

Revolt · Accepted Answer

Answer image: https://media.edgenuity.com/EVresources/3111-10-11-30-01-task/mc001-3.jpg

Modeling with Exponential and Logarithmic Equations Answers

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