Proportional Relationships Practice

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

What is the constant of proportionality?

Back

The constant of proportionality is the constant value (k) that relates two proportional quantities, often represented as y = kx.

Front

How do you identify a proportional relationship from a table?

Back

A proportional relationship can be identified if the ratios of corresponding values are equal.

Front

What does it mean for a graph to be proportional?

Back

A graph is proportional if it is a straight line that passes through the origin (0,0).

Front

Write the equation for a proportional relationship where y is 3 times x.

Back

y = 3x

Front

If you buy 5 apples for $10, what is the cost per apple?

Back

$2 per apple.

Front

What is the ratio of 18 pears to a total of 44 fruits (12 apples, 18 pears, 14 bananas)?

Back

9/22

Front

If y = 1/2x, what is the value of y when x = 8?

Back

y = 4.

Front

How can you determine if two ratios are equivalent?

Back

Two ratios are equivalent if their cross products are equal.

Front

What is the formula to find the constant of proportionality from a graph?

Back

k = y/x, where k is the constant of proportionality.