Proportional Relationships Review

Front

What makes a graph proportional?

Back

A graph is proportional if it is linear and the line goes through the origin.

Front

Write the equation for the table given: If y = 8x, what is the relationship between y and x?

Back

The equation is y = 8x.

Front

If Joel earns $40 for shoveling snow on two driveways, which equation shows the money (m) he earns per driveway (d)?

Back

m = 20d.

Front

In the equation y = 14x, what is the constant of proportionality?

Back

The constant of proportionality is 14.

Front

Does the graph represent a proportional relationship?

Back

Yes, if it is a straight line that passes through the origin.

Front

What is a proportional relationship?

Back

A proportional relationship is one where two quantities maintain a constant ratio.

Front

How do you find the constant of proportionality from a table?

Back

Divide the y-value by the corresponding x-value.

Front

What is the slope of a proportional relationship graph?

Back

The slope is equal to the constant of proportionality.

Front

If y = kx, what does k represent?

Back

k represents the constant of proportionality.

Front

What does it mean if a graph does not pass through the origin?

Back

It means the relationship is not proportional.