The slope of a graph with "income" on the horizontal axis and "saving" on the vertical axis is +0.2.This means that if
A)income is $100, then saving is $20.
B)income is 0.20, then saving is zero.
C)income increases by $100, then saving will rise by $20.
D)saving rises by $100, then income will rise by $20.

Question

Quizplus · Accepted Answer

The slope of +0.2 indicates that for every $1 increase in income, saving increases by $0.20. Therefore, if income increases by $100, saving will increase by $20.

The Slope of a Graph with "Income" on the Horizontal