What is the equation, in slope-intercept form, of the line that passes through (0, −2) and has a slope of −3?

Question

y = −2x − 3

y = −2x + 3

y = −3x + 2

y = −3x − 2

Answer 1

Hi Marie,

Theres a couple of things that will make this problem really easy -

just to review,

1)

Slope-Intercept form looks like

Y = Mx+B

where M is slope and B is your "y-intercept"

2)

Since a Y-Intercept is where the line crosses the Y-Axis, then you know from the problem that your y-intercept is -2 because it tells you that there's a point (0,-2)

The problem also tells you the slope straight up, so you can just plug it in!

So B = -2

and

M = -3

Plugging those numbers into "Y= Mx+B"

your answer will be Y = -3x + (-2)