Ratios and Proportions

A recipe uses 5 cups of flour for every 2 cups of sugar. What is the ratio of flour to sugar?

Which of the following graphs represents a proportional relationship?

• A straight line passing through the origin

• A straight line not passing through the origin

• A curve passing through the origin

• A horizontal line

• Yes

• No

Which of the following statements is true about proportional relationships?

• The graph is a straight line that does not pass through the origin.

• The relationship is always nonlinear.