Unit 2: Proportional Reasoning

For two quantities x and y, if y is always a constant multiple of x,

they have a(n) ______.

• Constant of Proportionality

• Proportional Relationship

• Ratio

• Unit Rate

The value of the ratio y/x of two proportional quantities x and y is called?

• Proportional Relationship

• Constant of proportionality

• ratio

• rate

An equation that shows that two ratios are equal is a(n) ___.

• Proportion

• Ratio

• Rate

• Unit Rate

Mealworms are a healthy food for wild songbirds. Adam buys 3.5 oz container of mealworms for $8.75. Marco buys a 3.75 oz container of mealworms for $9.75. Which container is the better deal

• Adam

• Marco

In the table below shows information about squares.

Are the perimeter and the side lengths of the squares proportional?

• Yes

• No

Use the table for information about squares.

Write and solve a proportional to find the perimeter of a square when its side length is 12.

• 96

• 48

• 3

• 4

Sally is going on vacation with her family. In 2 hours they travel 90.5 miles. If they travel the same speed, write and solve an equations that represents how they will travel, d, in h hours.

• d=45.25h

• d=190h

• h=45.25d

• h=190d

The table shows the weights of bunches of bananas and the price of each bunch. Identify the constant of proportionality. Write an equation to relate weight, w, to the price, p.

• p=0.45w

• w=0.45p

• p=4.05w

• w=4.05p

Does the graph show a proportional relationship?

• Yes, the graph is a straight line.

• No, the graph does not go through the origin.