Find the value of r so the line that passes through each pair of points has the given slope. (1, r), (7, 5), m = 2/3

r = 1

Step-by-step explanation:

slope = change in y / change in x, so:

change in y / change in x  = 2/3

5 - r / 7 - 1 = 2/3

5 - r / 6 = 2/3

now solve this equation.

first, multiply both sides by 6 to get rid of the fraction:

subtract 5 from both sides

multiply both sides by -1