Question

Find the value of r so the line that passes through (-3,2) and (3,r) has a slope of -1/2

Please Help!!

Answer 1

Explanation:

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

-1/2 = (r - 2)/(3 - (-3))

-1/2 = (r - 2)/6

-1/2(6) = r - 2

-3 = r - 2

-3 + 2 = r

hence r = -1.