Constant of Proportionality

Front

What is the constant of proportionality?

Back

The constant of proportionality (k) is the ratio of two proportional quantities, often expressed as k = y/x.

Front

Identify the constant of proportionality in the equation y = 5x.

Back

k = 5

Front

What does a proportional relationship look like on a graph?

Back

A proportional relationship is represented by a straight line that passes through the origin (0,0).

Front

If Craig earns $37 for 4 hours, what is his hourly rate?

Back

$9.25 per hour.

Front

Which equation represents a proportional relationship?

Back

y = 150x is proportional because it can be expressed as y = kx.

Front

What is the formula to find the constant of proportionality?

Back

k = y/x.

Front

If y = 2x - 3, is this a proportional relationship?

Back

No, because it does not pass through the origin.

Front

What is the constant of proportionality if y = 1/2x?

Back

k = 1/2.

Front

How do you determine if a graph is proportional?

Back

Check if the line passes through the origin and is straight.

Front

What is the constant of proportionality for the equation y = 3x?

Back

k = 3.