Question

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

Answer 1

y = 2x- 4

Explanation:

first we want to find the slope m :-

`m = (y₂ - y₁)/(x₂ - x₁)`

find m :-

`m = ( - 20 - ( - 10))/(12 - 7) = (10)/(5) = 2`

find b :

`2 * 2 + b = 0 \\ 4 + b = 0 \\ b = - 4`

writing the equation :-

`y = 2x - 4`