If you work for an hourly wage, your gross pay is a function of the number of hours that you work. If you earn $8 per hour, complete the following table:Number of Hours03571012Gross Pay If you were to plot the ordered pairs on a set of axes, in which quadrant would the domain and range of the function lie?
Answer
A
8, 16, 24, 32, 40, 48; Quadrant I
B
0, 24, 40, 56, 80, 96; Quadrant II
C
8, 16, 24, 32, 40, 48; Quadrant II
D
0, 24, 40, 56, 80, 96; Quadrant I
Explanation
Multiply each number of hours by $8: 0 hours earns $0, 3 earns $24, 5 earns $40, 7 earns $56, 10 earns $80, and 12 earns $96. These ordered pairs have nonnegative hours and nonnegative gross pay, so they lie on the axes or in Quadrant I. Choice D gives the correct pay amounts and quadrant.
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