Find r if (r, 6) and (5, -4) are two points on a line with a slope of 5/7 (hint: use the slope formula)

The formula of a slope:

We have

Substitute

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)