Question

Which linear equation has a slope of 3 and a y-intercept of -2?

y = 3x + 2
y = 3x - 2
y = -2x + 3
y=-2x-3

Answer 1

y = 3x - 2

Explanation:

The number beside the x is the slope. The number at the end of the equation is the y-intercept.

All the answers are in this form:

y = mx + b

m is the slope.

b is the y-intercept.

With a 3 filled in for slope and -2 filled in for the y-intercept, you get:

y = 3x + -2

is the same as,

y = 3x - 2