A color printer can print 36 pages in 3 minutes and 108 pages in 9 minutes. If the number of pages varies directly with the time, at what rate is the color printer printing?
A new compact car can travel 288 miles on nine gallons of gas. The distance driven in miles y varies directly with the number of gallons of gas x. The situation can be represented by the equation \(\text{y} = 32\text{x}\).
a. Graph the equation on the coordinate plane shown.
c. The distance y travelled by a hybrid car using x gallons of gas can be represented by \(\text{y} = 42\text{x}\). Which car gets better gas mileage? Explain.
Financial Literacy Annie's current earnings are shown in the table. She was offered a new job that will pay $7.25 per hour. Assume that her earnings vary directly with the number of hours worked. Which job pays more an hour?
The height of a wide-screen television screen varies directly with its width. A television screen that is 60 centimeters wide and 33.75 centimeters high. Write and solve a direct variation equation to find the height of a television that is 90 centimeters wide.
Building on the Essential Question What is the relationship among the unit rate, slope, and constant rate of change of a proportional linear relationship?
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