Question

Which of the following equations represents a linear function?

A) y = x² + 2x - 5
B) y = bal
C) y = 21
D) y = 3x + 4

Answer 1

The equation that represents a linear function is y = 3x + 4. Hence, option D) is correct.

Step-by-step explanation:

The equation that represents a linear function is D) y = 3x + 4. A linear function can be expressed in the form y = mx + b, where m represents the slope and b represents the y-intercept. In this equation, the slope is 3 and the y-intercept is 4. This equation will produce a straight line graph when plotted on a Cartesian coordinate system.