Question

Which of the following lines has a y-intercept of (0,3) and a slope of 1/2?

A. y=1/2x + 3

B. y=1/3x - 3

C. y=3x + 1/2

D. y= 3x -1/2

Answer 1

A. y = 1/2x + 3

Explanation:

y = mx + b

m is the slope, b is the y-intercept

since 1/2 is the slope we now have

y = 1/2x + b

y-intercept is (0,3) which means b = 3 since 3 is the y value

y = 1/2x + 3