Understanding Proportional Relationships

Front

What does k represent in the equation y = kx?

Back

k represents the constant of proportionality.

Front

Is this graph proportional? (Answer with Yes or No)

Back

No

Front

Does the table represent a proportional relationship? (Answer with Yes or No)

Back

No.

Front

Write an equation for this relationship: (Options: y=1/5x, y=1/2x, y=2x, y=5x)

Back

y=5x

Front

What is the constant of proportionality? (Options: $3, $4, $2, $9)

Back

$9

Front

Define proportional relationship.

Back

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

Front

What is the formula for finding the constant of proportionality?

Back

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

Front

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

Back

3

Front

What does a proportional graph look like?

Back

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

Front

If the constant of proportionality is 4, what is y when x = 5?

Back

y = 4 * 5 = 20.