Proportional Relationships Review

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other is constant.

Front

How do you find the constant of proportionality (k)?

Back

The constant of proportionality (k) can be found by dividing y by x (k = y/x).

Front

What does the constant of proportionality represent in a proportional relationship?

Back

The constant of proportionality represents the factor by which one quantity changes in relation to another.

Front

If y = kx, what does k represent?

Back

In the equation y = kx, k represents the constant of proportionality.

Front

What is the unit rate?

Back

The unit rate is the ratio of two measurements in which the second quantity is one unit.

Front

How do you calculate the unit rate from a total?

Back

To calculate the unit rate, divide the total quantity by the number of units.

Front

What is the equation for a proportional relationship if k = 5?

Back

If k = 5, the equation is y = 5x.

Front

If the constant of proportionality is 10, what is the value of y when x = 3?

Back

If k = 10 and x = 3, then y = 10 * 3 = 30.

Front

What does it mean if a graph does not represent a proportional relationship?

Back

If a graph does not represent a proportional relationship, it means the ratio of y to x is not constant.

Front

Identify the constant of proportionality in the equation p = 0.22w.

Back

In the equation p = 0.22w, the constant of proportionality is 0.22.