Ratio Relationships: Plotting Points on a Graph

A recipe calls for a ratio of 2 cups of flour to 3 cups of sugar. If you want to plot the amount of flour (x) against the amount of sugar (y) on a graph, what point would represent 4 cups of flour?

• (4, 4)

• (4, 6)

• (6, 9)

• (2, 3)

In a class, the ratio of boys to girls is 3:2. If there are 12 boys, how many girls are there? Plot the point (12, 8) on a coordinate graph to represent this ratio.

• 10

• 6

• 4

• 8

A fruit stand sells apples and oranges in a ratio of 5:3. If there are 25 apples, how many oranges are there? Plot the point (25, 15) on a graph to show this relationship.

• 20

• 10

• 15

• 30

A car travels 60 miles in 1 hour and 90 miles in 1.5 hours. What is the ratio of miles to hours? Plot the points (1, 60) and (1.5, 90) on a coordinate graph.

• 75 miles per hour

• 30 miles per hour

• 60 miles per hour

• 45 miles per hour

In a garden, the ratio of roses to tulips is 4:5. If there are 20 roses, how many tulips are there? Plot the point (20, 25) on a graph to represent this ratio.

• 15

• 20

• 30

• 25

A school has a ratio of 7 teachers to 21 students. If you plot the number of teachers (x) against the number of students (y), what point would represent this ratio?

• (4, 12)

• (2, 6)

• (3, 9)

• (1, 3)

A recipe requires a ratio of 1:4 for salt to water. If you use 2 tablespoons of salt, how many tablespoons of water do you need? Plot the point (2, 8) on a graph to show this ratio.

• 6 tablespoons of water

• 4 tablespoons of water

• 8 tablespoons of water

• 10 tablespoons of water

In a basketball game, the ratio of points scored by Team A to Team B is 3:2. If Team A scores 30 points, how many points does Team B score? Plot the point (30, 20) on a coordinate graph.

• 35

• 25

• 15

• 20

A store sells pencils and erasers in a ratio of 2:1. If there are 40 pencils, how many erasers are there? Plot the point (40, 20) on a graph to represent this ratio.

• 10

• 20

• 30

• 25

In a pet shop, the ratio of cats to dogs is 3:4. If there are 12 cats, how many dogs are there? Plot the point (12, 16) on a coordinate graph to show this relationship.

• 16

• 18

• 14

• 20