Which line represents the best fit for the scatter plot data?
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Incorrect
Question 2 of 4
2. Question
A researcher studied the eyesight of people at different ages. She calculated a vision score for each person in the study and plotted the data on the graph below.
The researcher used the line y = -0.1x + 110 to model the data. When she substituted the value x = 65 into this equation, what did the result tell her?
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Question 3 of 4
3. Question
Annette plans to visit an amusement park where she must pay for admission and purchase tickets to go on the rides. Annette wants to find the total cost for a day at the amusement park. She wrote the equation c = 1.50x + 12 to predict c, the total cost for a day at the amusement park. What could the number 12 represent in Annette’s equation?
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Question 4 of 4
4. Question
The scatter plot shows the sizes and annual rents of some office spaces in the downtown area of a city.
What would the line of best fit reveal about these data?
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Incorrect
8th Grade Math Assessment: 8.SP
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