Unit 4 - Line of Best Fit - Desmos Graphing Calculator
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Last updated over 3 years ago
22 questions
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For #1-3, tell whether x and y show a positive correlation, a negative correlation, or relatively no correlation.
Question 1
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Question 2
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Question 3
3.
For #4-9, use your Desmos graphing calculator to find the equation of the line of best fit in slope intercept form (y=mx+b). Round slope and y-intercept to the nearest tenth. If your answer isn't showing as correct, check with me and we will see if it is calculator differences...
Question 4
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Question 5
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Question 6
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Question 7
7.
In the following problems (Number 8 - 19), find the equation for the line of best fit. Then evaluate it for the given x or y values. Round to the nearest tenth!
Question 8
8.
Question 9
9.
Approximate the value of y when x = 3.
Question 10
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Question 11
11.
Approximate the value of x for y = 3.
Question 12
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Question 13
13.
Approximate the value of y for x = 4.
Question 14
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Question 15
15.
Approximate the value of x for y = 4.
Question 16
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Question 17
17.
Approximate the value of y for x = 5.
Question 18
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Question 19
19.
Approximate the value of x for y = 5.
Use the data in the chart below for problems 20-22.
Question 20
20.
Find the equation of the line of best fit. Write it in slope-intercept form. Round your slope and intercept to the nearest tenth!
Question 21
21.
Using your equation from #20, what grade would you expect someone who studied for 7 hours to get?
Question 22
22.
Use your equation to predict the exam score for a student who spent 15 hours studying.