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.

Front

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

Back

k = 2

Front

If y = 30x, what is the constant of proportionality?

Back

k = 30

Front

If y = 0.03x, what is the constant of proportionality?

Back

k = 0.03

Front

If y = 9x, what is the constant of proportionality?

Back

k = 9

Front

What does it mean if k = 1.50 in a proportional relationship?

Back

It means that for every unit increase in x, y increases by 1.50.

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.

Front

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

Back

k = y/x for any pair of corresponding values (x, y).

Front

If the constant of proportionality is 4, what is the equation of the proportional relationship?

Back

y = 4x

Front

If y = kx and k = 2, what happens to y if x is doubled?

Back

y will also double, since y is directly proportional to x.