Concept explainers
HOW DO YOU SEE IT? Match the description of the situation with its graph. Then write the equation of the line. [The graphs are labeled (i), (ii), (iii), and (iv).]
(a) You are paying $10 per week to repay a $100 loan.
(b) An employee is paid $12.50 per hour plus $1.50 for each unit produced per hour.
(c) A sales representative receives $50 per day for food plus $0.58 for each mile traveled.
(d) A computer that was purchased for $600 depreciates $100 per year.
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