Unit Test — Unit test

Question 1

Which best describes the relationship between the successive terms in the sequence shown?2.4, –4.8, 9.6, –19.2

Revolt · Accepted Answer

The common ratio is –2.0.

Question 2

A store sells notebooks for $3 each and does not charge sales tax. If x represents the number of notebooks Adele buys and y represents the total cost of the notebooks she buys, which best describes the values of x and y?

Revolt · Accepted Answer

The value of x can be any integer greater than or equal to 0, and y will be an integer greater than or equal to 0.

Question 3

On a coordinate plane, a curved line crosses the y-axis at (0, 1), crosses the x-axis at (.25, 0), turns at point (2, negative 3), and crosses the x-axis (3.75, 0).

Revolt · Accepted Answer

all the real numbers greater than or equal to –3

Question 4

If f(x) = 2x2 + 1, what is f(x) when x = 3?

Revolt · Accepted Answer

19

Unit Test — Unit test Answers

More from this Course

TRY EDGENUITY HACKS