Constant of Proportionality

Front

What is the constant of proportionality, k, that relates y to x?

Back

k is the ratio of y to x in a proportional relationship.

Front

In the equation y = kx, what does k represent?

Back

k represents the constant of proportionality.

Front

If Joshua types 84 words in 4 minutes, what is the constant of proportionality, k, in words per minute?

Back

k = 21 words per minute.

Front

What is the point called where the x-axis and y-axis intersect?

Back

The point (0, 0) is called the origin.

Front

Identify the constant of proportionality, k, that relates y to x if k = -0.45.

Back

k = -0.45 indicates a negative proportional relationship.

Front

What is the formula to find the constant of proportionality?

Back

The formula is k = y/x.

Front

If y = 10 when x = 5, what is the constant of proportionality, k?

Back

k = 2.

Front

If the constant of proportionality is 3, what is the value of y when x = 4?

Back

y = 12.

Front

True or False: The constant of proportionality can be negative.

Back

True.

Front

What does a constant of proportionality of 0 indicate?

Back

It indicates that y does not change with x.