Proportional Relationships

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 quantity is constant.

Front

What is the constant of proportionality in the equation y = kx?

Back

The constant of proportionality is 'k', which represents the ratio of y to x.

Front

In the equation y = 14x, what is the constant of proportionality?

Back

14

Front

Which equation represents a proportional relationship? y = x + 3, y = x - 9, y = 7x, y = 4x + 1

Back

y = 7x

Front

What does a graph of a proportional relationship look like?

Back

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

Front

If y = 5x, what is the value of y when x = 3?

Back

y = 15.

Front

What is the constant of proportionality if y = 25 when x = 5?

Back

5.

Front

Which of the following graphs is proportional? A, B, C, D, All of the graphs are proportional

Back

All of the graphs are proportional.

Front

What is the formula to find the constant of proportionality?

Back

k = y/x.

Front

If the constant of proportionality is 9, what is the equation of the proportional relationship?

Back

y = 9x.