Question

What is the y-intercept of the line that passes

through the points (1,-13) and (-10,31) ?
F.
G.
H.
J.
K.
-9
-4
0
9

Answer 1

The slope is

`(-13-31)/(1-(-10))=-4`

So, the equation is

`y+13=-4(x-1)</p><p>`

The y-intercept is when x=0, so

`y+13=-4(0-1) \\ \\ y+13=4 \\ \\ \boxed{y=-9}`