Question

Identify the x and y intercepts of the function y=2x+4

Answer 1

• x-intercept: -2
• y-intercept: 4

Explanation:

The function is written in slope-intercept form, so the constant (4) is the y-intercept.

The x-intercept is found by solving for x when y = 0.

0 = 2x +4

0 = x +2 . . . . . divide by 2

-2 = x . . . . . . . the x-intercept

The x-intercept is -2; the y-intercept is 4.