Relationship Between Two Variables

• F

• G

• H

• J

• F

• G

• H

• J

• F

• G

• H

• J

Workers are preparing an athletic field by mixing soil and sand in the correct ratio. The table shows the volume of sand to mix with different volumes of soil. Which statements are correct?

• The ratio of the volume of soil to the 

        volume of sand is 1 : 4.

• A graph of the relationship includes the point (900, 225).

A cook makes soup that contains bean broth and vegetable broth. The table shows the amount of each type of broth the cook uses to create different volumes of the sam soup. Determine whether each statement about the relationship between the bean broth and vegetable broth is true or false.

(If true select it.)

• The ratio of bean broth to vegetable broth is 4:1.

• A graph of the relationship would include the point (44, 176).

• The cook uses 4 cups of bean broth for every 16  cups of vegetable broth.

• If the cook uses 34 cups of bean broth, she should use 106 cups of vegetable broth.

Make an equation to represent the graph below.

Make an equation to represent the graph below.

Make an equation to represent the graph below.

Four friends share dinner. They use a $12 off coupon, and share the remaining cost equally. The equation represents the total cost of dinner, d, in relation to the cost of dinner per person, C.

Which graph shows this equation?

(The independent variable, d, is along the x-axis.)

• 
• 
• 
• 

The graph below represents the cost, y, based on the amount of cakes bought, x.

Which equation represents the situation?

• y = 20x

• y = 15x

• y = x

• y = 3/2 x