Proportional Relationships, Linear Equations, and Functions

Katie earns $12 an hour. Which graph represents the relationship between the number of hours Katie works and her earnings, in dollars?

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Match each graph with its equation.

• y = x - 5

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• y = 2x + 5

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• y = 1/2x + 5

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Line PR passes through the origin and (-20, 8). Coordinate point Q is also on the line. What is the slope of the line PQ?

The table shows the amounts of dry pasta, in pounds (lb), Italian Kitchen uses, and the graph shows the amounts of dry pasta Taste of Italy uses. Which of the following statements is false?

• Taste of Italy uses more dry pasta per serving than Italian Kitchen uses.

• Taste of Italy uses 0.25 lb of dry pasta per serving.

• For 100 servings at Italian Kitchen, 25 lb of dry pasta are needed.

Complete the equation for the line:

y = ​ ___x + ​ ___

The table shows a linear relationship. Through which point will the graph of the line pass?

• (-10, -14)

• (-2, 10)

• (10, 20)

• (40, 24)

The table shows the hourly wages, in dollars, Fred and George make at their new job, as well as the amount of money each received as a starting bonus.

After how many hours will Fred and George have made the same total amount of money?

Which group of ordered pairs DOES NOT represent a function? (Make a table for each group. If there is more than one y value for a particular x value, then it is NOT a function. Also try graphing the pairs)

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Which table shows a linear function with the same y-intercept as the graph shown?

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