Question

(r, -4) and (2, 8); m = -3

Find the missing value so that the line passing through the points has the given slope​

Answer 1

6

Explanation:

`(-4-8)/(r-2)=-3 \\ \\ (-12)/(r-2)=-3 \\ \\ -12=-3r+6 \\ \\ -18=-3r \\ \\ r=6`