Question

Use linear regression to find a function that fits the following points. (-2,-1), (3,9).​

Answer 1

Explanation:

`(y - y_1)/(y_2 - y_1) = (x - x_1)/(x_2 - x_1)`

`(y - ( - 1))/(9 - ( - 1)) = (x - ( - 2))/(3 - ( - 2))`

`\frac{y + 1}{ \cancel{10}} = \frac{x + 2}{ \cancel{5} }`

`(y + 1)/(2) = (x + 2)/(1)`

`1.(y + 1) = 2.(x + 2)`

`y + 1 = 2x + 4`

`y = 2x + 4 - 1`

`y = 2x + 3`