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Unit 7 Test

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Last updated over 1 year ago
19 questions
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Question 1
1.

If a tablespoon of fertilizer is required for 64 ounces of water, then how many tablespoons are in required for 3 gallons of water?
Note: There are 128 ounces in a gallon.

Question 2
2.

Mario traveled 40 miles in 25 minutes. If he continues at the same speed, how many miles should Mario travel in 2 hours? Label you answer.

Question 3
3.

Solve the proportion.

Question 4
4.

The cost of pizza varies on the number of toppings you order. Calculate the price for a topping based on the information in the table.

Question 5
5.

The cost of pizza varies on the number of toppings you order. Calculate the price of a pizza with no toppings.

Question 6
6.

Write an equation in slope-intercept form that models the linear relationship in the table.

Question 7
7.

From the previous problem, use your equation to calculate the cost of a deluxe pizza with six toppings.

Question 8
8.

A Google Pixel had an initial value of $699. After a year, the cell phone value dropped to $538. What is the average depreciation per month of the cell phone for its first year?

Question 9
9.

Kim tracks her car value over 10 years. Determine the slope from the following graph and explain it meaning.

Question 10
10.

Kim tracks her car value over 10 years. Determine the y-intercept from the following graph and explain it meaning.

Question 11
11.

Draw a trend line. Estimate and interpret the slope of the line.

Question 12
12.

Estimate and interpret the y-intercept of the trend line you drew in problem 11.

Question 13
13.

Identify the independent and dependent variables in the table provided.

Draggable itemarrow_right_altCorresponding Item
Shoe Size (US)
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independent
Height (cm)
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dependent
Age in years
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None of the above.
Question 14
14.

Use Desmos to create a scatterplot. Label the axes. Draw a trend line and write a linear model for your trend line. Round the slope & y-intercept to the nearest hundredth.

Question 15
15.

Using your equation from #14, predict the height for someone with a shoe size of 10 to the nearest centimeter.

Question 16
16.

Is your prediction in #15 an example of interpolation or extrapolation?

Question 17
17.

What is the correlation coefficient for the scatterplot you created in #14? Is this a strong or weak correlation?

Question 18
18.

Determine the following using the data in the table:


Match the correct value to the correct statistic.

Draggable itemarrow_right_altCorresponding Item
4.2 years
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Median
6 years
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Quartile 1
3 years
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Quartile 3
1 year
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Mean
3.8 years
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None of the above
Question 19
19.

Data collected on someone's age along with their annual income is an example of what kind of data?