If the quantity of the variable on the y-axis increases by 10 when the quantity of the variable on the x-axis decreases by 2, then the slope of the curve equals
A)10.
B)-5.
C)2.
D)-10.
E)None of the above answers are correct.

Question

Quizplus · Accepted Answer

The slope of a curve is calculated as the change in the y-axis variable divided by the change in the x-axis variable. Here, the change in y is +10 and the change in x is -2, so the slope is 10 / -2 = -5.

If the Quantity of the Variable on the Y-Axis Increases