Question

If two points on a line are A(10, −3) and B(12, 9), the rise is __________, and the run is __________, so the slope of the line is __________.

Answer 1

The rise is the difference in y-coordinates:

• y₂ - y₁ = 9 - (-3) = 12

The run is the difference in x-coordinates:

• x₂ - x₁ = 12 - 10 = 2

The slope is the quotient of rise over run:

• m = 12/2 = 6

========================

If two points on a line are A(10, −3) and B(12, 9), the rise is 12, and the run is 2, so the slope of the line is 6.