Constant of Proportionality

Front

What is the constant of proportionality?

Back

The constant of proportionality is the constant factor (k) that relates two proportional quantities, expressed in the form y = kx.

Tags

CCSS.7.RP.A.2B

Front

How do you express a proportional relationship?

Back

A proportional relationship can be expressed as y = kx, where k is the constant of proportionality.

Tags

CCSS.7.RP.A.2C

Front

If y = 2x, what is the constant of proportionality?

Back

The constant of proportionality (k) is 2.

Tags

CCSS.7.RP.A.2B

Front

If k = 1.50, what is the relationship between y and x?

Back

The relationship can be expressed as y = 1.50x.

Tags

CCSS.7.RP.A.2C

Front

What does it mean if k = none (not proportional)?

Back

It means that the relationship between the variables is not proportional and cannot be expressed in the form y = kx.

Tags

CCSS.7.RP.A.2B

Front

If y = 30x, what is the value of k?

Back

The value of k is 30.

Front

How can you determine if a relationship is proportional?

Back

A relationship is proportional if the ratio of y to x is constant for all pairs of values.

Tags

CCSS.7.RP.A.2A

Front

If y = 15x, what is the constant of proportionality?

Back

The constant of proportionality (k) is 15.

Tags

CCSS.7.RP.A.2B

Front

What is the formula to find the constant of proportionality from a table of values?

Back

To find the constant of proportionality, divide y by x for any pair of values: k = y/x.

Tags

CCSS.7.RP.A.2B

Front

If y = 0.06x, what does this indicate about the relationship?

Back

This indicates a proportional relationship with a constant of proportionality k = 0.06.

Tags

CCSS.7.RP.A.2B