Concept explainers
Extending Skills Solve each problem.
The cost to rent a moving van is $0.50 per mile, plus a flat fee of $100. This is illustrated in the graph and can be modeled by the linear equation
a. What is the slope? With what does the slope correspond in the problem?
b. What is the y-intercept? With what does the y-value of the y-intercept correspond in the problem?
c. Use the equation to determine the total charge if 400 mi are driven. Confirm this using the graph.
d. Use the graph to determine the number of miles driven if the charge is $500. Confirm this using the equation.
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Beginning and Intermediate Algebra (6th Edition)
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