March MATHness Grade 8 Week 1

Consider the line shown on the graph. Enter the equation of the line in the form y=mx where m is the slope.

The table shows the proportional relationship between the number of hours (h) Jalen has been biking and the total distance (d) he covered, in kilometers. Select the equation which shows a distance per hour that is 3 times more than the distance Jalen covered per hour.

• d = 3h

• d=3.5h

• d=10.5h

• d=17.5

A cook uses 2.5 cups of flour for each ounce of butter in a recipe. Which graph represents the relationship between the amount of flour and the amount of butter in the recipe?

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• There is exactly one solution at (0,8)

• There are infinitely many solutions

• There is exactly one solution at (3,2)

• There is no solution

Find the value of x. Round your answer to the nearest hundredth.

A store sell cylindrical containers of oatmeal in two sizes, small and large. The small container has a height of 4.5 inches and a diameter of 6 inches. The large container has a height of 10 inches and a diameter of 8 inches. How many times as great is the volume of the large container as the volume of the small container? Round your answer to the nearest whole number.

• The predicted initial amount

• The predicted change in savings each person each month

• The total balance of all three accounts together

• The number of months they have been saving

This scatter plot shows the relationship between the average daily temperature and the number of air conditioners sold. Select all the true statements based on the scatter plot.

• There is a linear association between average daily temperatures and the number of air conditioners sold.

• There is a negative correlation between average temperatures and sale of air conditioners.

• Higher temperatures tend to result in a higher number of air conditioners solve.

• There are no true statements.