Unit 7 Test

Last updated over 1 year ago
19 questions
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.

1

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.

1

Solve the proportion.

1

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.

1

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

1

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

1

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

1

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?

1

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

1

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

1

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

1

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

1

Identify the independent and dependent variables in the table provided.

Draggable itemCorresponding Item
Height (cm)
independent
Age in years
dependent
Shoe Size (US)
None of the above.
1

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.

1

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

1

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

1

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

2

Determine the following using the data in the table:


Match the correct value to the correct statistic.

Draggable itemCorresponding Item
4.2 years
Median
1 year
Quartile 1
3 years
Quartile 3
3.8 years
Mean
6 years
None of the above
1

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