Question

Which of the following best describes the equation below?

y = 7x - 9
A.neither linear nor nonlinear
B. both linear and nonlinear
C. nonlinear
D. linear

Answer 1

(D) Linear

Step-by-step explanation:

Linear: Arranged in or extending along a straight or nearly straight line.

Progressing from one stage to another in a single series of steps; sequential.

The the equation is formed on a number line it proceeds in a straight line upward.

Answer 2

y = 7x - 9

This equation is in slope intercept form, which is y = mx + b

Any equation that takes slope intercept form will always be linear since slope intercept form is used to represent a line.

Thus, the answer is D.

Let me know if you need any clarifications, thanks!