Homework Explained - Math Practice 101

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Grade 8 McGraw Hill Glencoe - Answer Keys

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Power Up Performance Task

Grand Expansion

Midtown Independent School is making plans to move to a new building to meet the increasing number of students in its middle school. The school's enrollment over the last several years is shown in the scatter plot.

Write your answers on another piece of paper. Show all of your work to receive full credit.

  • Question 1 (request help)

    Part A

    Draw a line of best fit on the graph. Interpret the scatter plot based on the shape of the distribution. Explain what this means in regard to enrollment.

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  • Question 1 (request help)

    Part B

    Write an equation for the line of best fit. What do the slope and y-intercept represent?

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    Part C

    The school must move to the new building once enrollment exceeds 690 students. If the enrollment continues to increase at the current rate, what year must the new building be ready?

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    Part D

    The two-way table shows the number of boys and girls who play sports in the middle school and high school. Find the relative frequencies of the students by columns to the nearest percent. Two hundred fifty new lockers will be purchased. The new lockers will be placed in the locker rooms based on the current distribution of students playing sports. Determine how the lockers should be distributed. Explain.

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