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Front

What does k represent in the equation y = kx?

Back

k represents the constant of proportionality.

Front

Does the equation y = kx represent a proportional relationship?

Back

No, it does not represent a proportional relationship if k is not equal to 1.

Front

Which graph represents a proportional relationship?

Back

A proportional relationship is represented by a straight line that passes through the origin.

Front

Find the unit rate of 624 calories in 3 servings.

Back

The unit rate is 208 calories per serving.

Front

If a bookshelf contains five DVDs that all have the same width and the combined width is 25 cm, what is the width of one DVD?

Back

The width of one DVD is 5 cm.

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 in a table of values?

Back

Divide the y-value by the corresponding x-value for any pair of values.

Front

What is the formula for finding the unit rate?

Back

Unit rate = Total quantity / Number of units.

Front

What does a graph of a proportional relationship look like?

Back

It is a straight line that passes through the origin (0,0).

Front

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

Back

The constant of proportionality is 3.