Linear Relationships Graphs

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Winston is selling jackets. This graph shows how WInston's revenue depends on the number of jackets sold. Complete the table that goes with the graph: Jackets | Dollars 1 | (a)   3 | (b)   13 | (c)  

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Alex works a part time job at a shoe store. He is paid on an hourly basis. The graph shows Alex's earnings based on the number of hours he works. Alex looks at the graph. He says "If I work 4 hours instead of 3, I will make $25.00 more". Is Alex correct? Select the best answer.

• No, this is not correct. If he work 4 hours instead of 3, he will make $100 more.

• Yes, this is correct. The unit rate, or money earned per hour, is $25. With each hour worked, he will make $25 more dollars.

Based on the graph, Which of the following statements is TRUE?

• I drove 80 miles every 4 hours

• I drove 160 miles in 1 hour

• I drove 80 miles every 2 hours

• I drove 240 miles in 4 hours

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The graphs show the cost of buying fruit. One line shows the cost of buying x pounds of plums and the other shows the cost of buying x pounds of peaches. Which kind of fruit costs more per pound?

• Plums because the line is the least steep

• Peaches because the line the most steep

• You can't tell because there are no numbers

Emily sells greeting card. The graph models the linear relationship between the number of boxes of cards she sells and her profit.

What is the cost per box of greeting cards?