Constant of Proportionality

Front

What is the constant of proportionality?

Back

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

Tags

CCSS.7.RP.A.2B

Front

If y = 5x, what is the constant of proportionality?

Back

k = 5

Tags

CCSS.7.RP.A.2B

Front

How do you express the constant of proportionality in a table?

Back

You express it as y = kx, where k is the constant that can be found by dividing y by x.

Tags

CCSS.7.RP.A.2B

Front

What does it mean if the constant of proportionality is 0?

Back

If k = 0, it means that y does not change with x; they are not proportional.

Tags

CCSS.7.RP.A.2B

Front

In the equation y = 15x, what is the value of k?

Back

k = 15

Tags

CCSS.7.RP.A.2C

Front

How can you find the constant of proportionality from a graph?

Back

You can find it by determining the slope of the line, which represents the ratio of y to x.

Tags

CCSS.7.RP.A.2D

Front

What is the constant of proportionality for the equation y = 30x?

Back

k = 30

Tags

CCSS.7.RP.A.2B

Front

If a graph shows a straight line passing through the origin, what can you say about the constant of proportionality?

Back

The constant of proportionality exists and can be determined from the slope of the line.

Tags

CCSS.7.RP.A.2B

Front

What is the constant of proportionality if y = 0.06x?

Back

k = 0.06

Tags

CCSS.7.RP.A.2B

Front

If the constant of proportionality is 16, what is the equation?

Back

y = 16x

Tags

CCSS.7.RP.A.2C