Question

14. Which of these statements correctly describes the function y = 4x + 9?

A. It is not a linear function, and its graph is not a straight line.
B. It is a linear function, but its graph is not a straight line.
C. It is not a linear function, but its graph is a straight line.
D. It is a linear function, and its graph is a straight line.

Answer 1

Explanation:

because there is no change in slope. The graph will always be strait in this