Question

Identifying Rate of Change
Which of these graphs represents a rate of change of 4?

On a coordinate plane, a line goes through points (negative 3, 0) and (4, negative 2).
On a coordinate plane, a line goes through points (3, 0) and (2, 4).
On a coordinate plane, a line goes through points (negative 3, 0) and (negative 2, 4).

Answer 1

The third line, through (-3, 0) and (-2, 4).

Slope = (4 − 0)/(-2 − (−3)) = 4/1 = 4.