Question

Find the equation of the linear function represented by the table below in slope-intercept form.

x y
-1 8
2 -1
5 -10
8 -19

Answer 1

y = -x -3

Explanation:

y value is decreasing which means negative slope

you can use slope formula to find slope

(y2-y1)/(x2-x1) = m

(-4-(-2))/(1-(-1)) = -1

m = -1

you can find y -intercept by plugging in slope and one coordinate into y=mx+b

-2 = -1(-1) + b

b = -3