Open Up Math - Unit 2 - Pretest

The graph shows the cost C in dollars of w pounds of blueberries, a proportional relationship.

Select ALL of the true statements.

The two lines represent the amount of water, over time, in two tanks that are the same size. Which container is filling more quickly? Explain how you know.

The table shows the weights of apples at a grocery store.

Complete the table so that there is a proportional relationship between the number of apples and their weight.

Explain or show your answer to number 6 by either taking a picture of your work and posting it below, or by using the typing/drawing tools to show your work.

A recipe for salad dressing calls for 3 tablespoons of oil for every 2 tablespoons of vinegar. The line represents the relationship between the amount of oil and the amount of vinegar needed to make salad dressing according to this recipe. The point (1,1.5) is on the line.

Using the drawing or typing tool below, Label the axes appropriately.

Using the math tools, write an equation that represents the proportional relationship between oil and vinegar. Use the variables x and y in your equation.

Explain the meaning of the point (1,1.5) in terms of the situation. (What does the 1 represent, and what does the 1.5 represent?)