Proportional Relationships

Front

What describes how many units of the first type of quantity corresponds to one unit of the second type of quantity?

Back

Unit rate.

Front

What is the characteristic of a proportional graph?

Back

A straight line through the origin.

Front

In the equation y = ½x, what is the constant of proportionality?

Back

1/2.

Front

Does the following table represent a proportional relationship? (Example: x: 1, 2, 3; y: 2, 4, 6)

Back

Yes.

Front

Which equation does NOT represent a proportional relationship? y = -2x, y = 1/2 x, y = 3x, y = 5x - 7

Back

y = 5x - 7.

Front

What is a ratio?

Back

A comparison of two quantities by division.

Front

Define proportion in mathematics.

Back

An equation that states two ratios are equal.

Front

What is the formula for finding the unit rate?

Back

Unit Rate = Total Quantity / Number of Units.

Front

How can you identify a proportional relationship from a graph?

Back

If the line passes through the origin and is straight.

Front

What does it mean if two quantities are directly proportional?

Back

As one quantity increases, the other quantity increases at a constant rate.