Review Proportional Relationships Greally/Roy

Front

What is the constant of proportionality?

Back

The constant of proportionality is the ratio between two proportional quantities, often represented as 'k' in the equation y = kx.

Tags

CCSS.7.RP.A.2B

Front

What does it mean for a relationship to be proportional?

Back

A relationship is proportional if it can be represented by a straight line that passes through the origin (0,0) on a graph.

Tags

CCSS.7.RP.A.2D

Front

How can you determine if a graph represents a proportional relationship?

Back

A graph represents a proportional relationship if it is a straight line that passes through the origin.

Tags

CCSS.7.RP.A.2D

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity per one unit of another quantity.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If a car travels 80 miles in 2 hours, what is the constant of proportionality?

Back

The constant of proportionality is 40 miles per hour.

Tags

CCSS.7.RP.A.2B

Front

What does it mean if a graph is linear but not proportional?

Back

A linear graph that is not proportional does not pass through the origin, indicating that the relationship does not maintain a constant ratio.

Tags

CCSS.8.EE.B.5

Front

What is the equation of a proportional relationship?

Back

The equation of a proportional relationship can be expressed in the form y = kx, where k is the constant of proportionality.

Tags

CCSS.7.RP.A.2C

Front

If a table shows values (1, 2), (2, 4), (3, 6), what is the constant of proportionality?

Back

The constant of proportionality is 2, as each y-value is 2 times the corresponding x-value.

Tags

CCSS.7.RP.A.2B

Front

What is the significance of the origin in proportional relationships?

Back

The origin (0,0) is significant because a proportional relationship must pass through this point, indicating that if one quantity is zero, the other must also be zero.

Tags

CCSS.7.RP.A.2D

Front

How do you find the unit rate from a table of values?

Back

To find the unit rate, divide the value of one quantity by the corresponding value of the other quantity when the second quantity is equal to 1.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2