Question

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

Answer 1

Choices:
y = 2x + 4


y = -2x + 4


y + 2 = -2(x + 3)


2x + y + 4 = 0

Answer 2

Start with the point-slope form of the equation. m is the slope and (x_1, y_1) is the point. Plug in the numbers
\[y-y_1=m(x-x_1)\]

Answer 3

Then distribute "m" and add y_1 to get into slope intercept form.
\[y=mx+b\]

Answer 4

ok thanks! I get it now