3

Set 5: Linear Functions (Intermediate)

Explanation

Answer: C

PROBLEM

What is the y-intercept of y = 4x - 12?

What is the y-intercept of y = 4x - 12?

A.

4

B.

12

C.

-12

✓ Correct
D.

-4

Detailed Explanation

Choice C is the best answer. In y = mx + b, b = -12

Why others are wrong:
A: 4 is incorrect because it does not satisfy the equation.
B: 12 is incorrect because it does not satisfy the equation.
D: -4 is incorrect because it does not satisfy the equation.