Cumulative Exam — Cumulative exam

Question 1

Which of the following shows the true solution to the logarithmic equation

Revolt · Accepted Answer

x = 1

Question 2

Which statement best describes the effect on the graph of y = (x – 9)2 if the equation is changed to y = (x + 9)2?

Revolt · Accepted Answer

The graph moves left 18 units.

Question 3

Which of the following is the inverse of ?

Revolt · Accepted Answer

y = log Subscript 12 Baseline x

Question 4

Which survey is most likely affected by bias?

Revolt · Accepted Answer

a survey of students about vacation policies in a school district

Question 5

What is the following sum?

Revolt · Accepted Answer

4 x (RootIndex 3 StartRoot 2 y EndRoot) + 12 x squared y (RootIndex 3 StartRoot 2 y squared EndRoot)

Question 6

By what approximate factor is the intensity of an earthquake with magnitude 5.4 greater than an earthquake with magnitude 5.3?M = the magnitude of an earthquakeI = the intensity of an earthquakeI0 = the smallest seismic activity that can be measured, which is 1

Revolt · Accepted Answer

1.26

Question 7

What is the following product?

Revolt · Accepted Answer

98 –

Question 8

What is the following product? Assume .

Revolt · Accepted Answer

d

Question 9

A set of data has a mean of 0.5 and a standard deviation of 0.01. A data point of the set has a z-score of 2.5. What does a z-score of 2.5 mean?

Revolt · Accepted Answer

The data point is 2.5 standard deviations away from 0.5.

Question 10

Which phrase best describes the translation from the graph y = (x + 2)2 to the graph of y = x2 + 3?

Revolt · Accepted Answer

2 units right and 3 units up

Cumulative Exam — Cumulative exam Answers

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