Proportional Relationships

Front

What is a proportional relationship?

Back

A relationship between two quantities where their ratio is constant.

Front

What does the constant of proportionality (k) represent in the equation y = kx?

Back

The constant ratio between y and x in a proportional relationship.

Front

How can you identify a proportional relationship on a graph?

Back

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

Front

What is the equation of a proportional relationship?

Back

y = kx, where k is the constant of proportionality.

Front

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

Back

It indicates a non-proportional relationship.

Front

If k = 3 in the equation y = kx, what is the value of y when x = 4?

Back

y = 3 * 4 = 12.

Front

What type of line represents a proportional relationship?

Back

A straight line.

Front

Can a curvy line represent a proportional relationship?

Back

No, a curvy line indicates a non-proportional relationship.

Front

What is the ratio of y to x in a proportional relationship?

Back

The ratio is constant and equal to the constant of proportionality (k).

Front

If y = 10 when x = 2, what is the constant of proportionality (k)?

Back

k = y/x = 10/2 = 5.