Question

The points (1,-10) and (r,2) fall on a line with a slope of 2 what is the value of r.

Answer 1

The value of r in the given coordinates with their slope is; r = 7

How to find the Slope of a Line?

The formula for slope of a line passing through 2 points is;

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

We are given the coordinates as;

(1,-10) and (r,2)

The slope of the line passing through this coordinates is 2. Thus;

(2 + 10)/(r - 1) = 2

12 = 2r - 2

2r = 14

r = 14/2

r = 7

Read more about Slope of a Line at; brainly.com/question/3493733

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