Algebra 2 2-5 Guided Practice: Using Linear Models

by Matthew Richardson

| 8 Questionsa

1

2

Solve It! The graph shows the number of hours and the amount of money you earned each day last week.

1

10

How many hours should you work to earn $200? Enter only a number. Your response is only an approximation based on the trend of the data in the graph.

2

10

What assumptions did you make to find your answer? Explain.

3

20

Problem 1 Got It? The table shows the numbers of hours students spend online the day before a test and the scores on the test. Make a scatterplot of these data on the canvas. Use colors that stand out and include all relevant graph detail.

4

10

Problem 1 Got It? How would you describe the correlation between the variables in the table?

Problem 1 Got It? Now use the embedded Desmos graphing utility below to plot the same data.

1. Click the + button and add a table.

2. Input the hours from the table into the x₁ column.

3. Input the test scores from the table into the y₁ column.

4. Zoom and pan your graph to establish a suitable viewing window. (You may use the wrench button for fine tuning.)

5. Take a screenshot of your scatterplot.

5

10

Problem 1 Got It? Upload the screenshot you took of your Desmos scatterplot to the canvas.

6

10

Problem 1 Got It? Reasoning: Using the graph from Problem 1, how much would you expect to pay for electricity if the average temperature was 70°F? Explain.

7

7

10

Problem 2 Got It?

A

B

C

D

8

8

10

Problem 3 Got It? Consider using the embedded Desmos graphing utility above.

A

B

C

D

Add to my formatives list

Formative uses cookies to allow us to better understand how the site is used. By continuing to use this site, you consent to the Terms of Service and Privacy Policy.