Question

Includes the points (-6 , n) and (-8, -9) has a slope of 4 what is the value of n?

Answer 1

Explanation:

`slope \: = (n - ( - 9))/( - 6 - ( - 8)) \\ \\ \therefore \: 4 \: = (n + 9)/( - 6 + 8) \\ \\ \therefore \: 4 \: = (n + 9)/( 2) \\ \\ \therefore \: 4 * 2= n + 9 \\ \\ \therefore 8= n + 9 \\ \\ \therefore \: n = 8 - 9 \\ \\ \huge \red{ \boxed{\therefore \: n = - 1}}`