Question

find the value of r so the line that passes through each pair of points has the given slope (5, 3), (r, -5), m=4

Answer 1

r=3

Explanation:

use slope formula : y2-y1 / x2-x1

-5-3 / r-5

the numerator is -8 which means the denominator has to be -2 in order to have the slope be 4

so r-5 = -2

3-5 = -2