Question

WRITE THE EQUATION IN
SLOPE-INTERCEPT FORM

(1,-5) and (-2,-17)

Answer 1

y = 4x - 9 is the answer in slope intercept form

Answer 2

f(x) = 4x -9

Explanation:

The slope-intercept form is f(x) = mx + b, where m is the slope and b is the y-intercept.

First, we need to find the slope, m.

=
`(-5-(-17))/(1-(-2))`

=
`(12)/(3)`

=
`4`

m = 4, and now we plug it into the equation, using any given point, (1,-5) in this case.

f(x) = 4x + b

(-5) = 4(1) + b

-5 = 4 + b

b = -9

Now we find the equation: f(x) = 4x -9, and if we plug (-2,-17) in, we should get the same number as if we plug in (1,-5).