Pretest

Question 1

What does the base in an exponential function f of x is equal to A times b to the x th power indicate?

Revolt · Accepted Answer

The constant factor by which the function grows or decays.

Question 2

How does the graph of a linear function typically look?

Revolt · Accepted Answer

It displays as a straight path.

Question 3

Which distinguishes an exponential growth function from an exponential decay function?

Revolt · Accepted Answer

The growth function becomes steeper as x increases.

Question 4

Read the scenario. Sarah practices the piano for 30 minutes every day, increasing her total time by half an hour each day. How does this scenario show a constant rate of change between two quantities?

Revolt · Accepted Answer

The time spent practicing increases by the same amount each day.

Question 5

Given is a line from proof verifying that linear functions grow by equal differences over equal intervals. Given the function f of x is equal to 4 x plus 1 , calculate the change of the function’s value over the interval left bracket 2 comma 5 right bracket

Revolt · Accepted Answer

12

Question 6

What does the slope of a linear function represent?

Revolt · Accepted Answer

The constant change in y for each unit increase in x .

Question 7

Read the scenario. A car's speed increases from 0 to 60 miles per hour in 5 seconds and remains steady. Does this scenario show one quantity changing at a constant rate relative to another?

Revolt · Accepted Answer

No, because the car's acceleration lasts only 5 seconds.

Question 8

If f of x is equal to 2 to the x th power and you compare f of 2 to f of 4 , by which factor has the function grown?

Revolt · Accepted Answer

4

Question 9

Given h of x is equal to 5 to the x th power , what is the factor by which h of x increases for every unit increase in x ?

Revolt · Accepted Answer

5

Pretest Answers

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