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Grade 8 McGraw Hill Glencoe - Answer Keys
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Refer to the graphical novel frame below for Exercises a-b. Model with Mathematics
a. The scatter plot shows the average ticket prices since 1995. Draw a line that best represents the data in your scatter plot.
b. Write an equation in slope-intercept form for the line of best fit. Make a conjecture about the cost of a movie ticket in 2020.
H.O.T. Problems Higher Order Thinking
Use a newspaper or the Internet to find a scatter plot that consists of at least seven data points. Tape the scatter plot to your book. Draw a line of best fit and write an equation for the line. Use Math Tools
Describe or draw a scatter plot where a line of fit does not model the data. Explain your reasoning to a classmate. Persevere with Problems
Determine whether each statement is Justify Conclusions always, sometimes, or never true for data with a positive association. Justify your response. a. The statement of the line of best fit is positive.