Proportional Relationships Graphed

Is this table proportional?

• Yes

• No

Is the relationship between tables and chairs proportional?

• Yes; the relationship is proportional

• No; the relationship is not proportional

Which of the following is true about proportional relationships?

• To be proportional, the line of the graph MUST be straight.

• To be proportional, the line of the graph MUST be curvy.

• To be proportional, the unit rates on a TABLE must all be different.

For a relationship to be proportional, the graphed line must go through or touch the...

• x-axis

• Orangutan

• Origin

• y-axis

For a relationship to be proportional, the graphed line must be...

• Circular

• Curvey

• Straight

• Make a right angle

• A
• B
• C
• D

Which equation is a proportional relationship?

• y= 4x + 1

• y= 5x-10

• y= 0.5x - 4

• y=7x

What is another word for constant unit rate?

• y

• Constant of proportionality

• Constant of probability

• constant ratios

For a relationship to be proportional, the ordered pairs in a table must have the...

• Different unit rates

• Same unit rate

quantities that have a constant ratio

• rate of change

• equivalent ratios

• intercepts

• proportional

• slope

Answer explanation

Quantities are proportional if they have a constant ratio. The constant of proportionality is found by the ratio: y/x.

The rate of change is how one quantity changes in relation another. The slope is equal to the rate of change. x- and y-intercepts occur for straight lines as well as other relationships. Equivalent ratios are ratios that simplify to the same value.