k-constant of proportionality

Front

What is the equation form of a proportional relationship?

Back

y = kx

Front

What does the constant of proportionality represent?

Back

k

Front

If k = 2, what does this indicate about the relationship?

Back

The relationship is proportional with a constant ratio of 2.

Front

If k = 4, what does this indicate about the relationship?

Back

The relationship is proportional with a constant ratio of 4.

Front

What is the value of k if the relationship is not proportional?

Back

none (not proportional)

Front

How do you calculate the constant of proportionality?

Back

k = y/x

Front

What does a proportional relationship look like on a graph?

Back

A straight line that passes through the origin.

Front

If y = 10 when x = 2, what is k?

Back

k = 5 (since k = y/x = 10/2)