Edmentum Algebra1 Unit 4 Activity

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Jeremy is on the planning committee for the rock climbing club. He is putting together a trip where members can go outdoor rock climbing. He is trying to determine how high the group should climb and how long the trip should last. He calls multiple parks in the area that offer rock climbing and collects data on the height of the rock formations and the average time it takes people to reach the top and come back down. The data he found is shown.

Write the equation for the line of best fit.

Replace m and b with the values of the slope and the y-intercept. Round each number to the nearest tenth.

Complete each statement explaining what the slope and the y-intercept tell Jeremy about the trip he’s planning.

Select the correct answer from each drop-down menu.

Which three statements are true about the correlation shown by this scatter plot?

Select all the correct answers.

The correlation coefficient is approximately 0.96.
The correlation coefficient indicates a weak positive correlation.
The correlation coefficient is approximately 0.33.
The correlation coefficient indicates a strong positive correlation.
The line of best fit can be used to make accurate predictions from the data.
The line of best fit cannot be used to make accurate predictions from the data.

The table shows the heights of three different rock formations that Jeremy is considering. Rewrite the equation for the line of best fit. Then use the equation to predict how long it will take to climb and come back down the three rock formations.

Jeremy has heard a lot of people in the club talking about tackling a 950-foot rock formation. Jeremy has set a limit that they won’t climb anything that takes longer than 7 hours, so they have enough time to travel to and from the place. Will it be possible to climb a 950-foot rock formation within Jeremy’s time constraint? Explain why or why not.