Proportional relationships Review

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

If y = 9x, what does the equation represent?

Back

The equation y = 9x represents a proportional relationship where y is 9 times the value of x.

Front

What is the equation to represent the relationship if the constant of proportionality is 25?

Back

The equation is y = 25x.

Front

How do you find the constant of proportionality from a table of values?

Back

To find the constant of proportionality, divide the value of y by the corresponding value of x (k = y/x).

Front

What does the equation y = 4x represent?

Back

The equation y = 4x represents a proportional relationship where y is 4 times the value of x.

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

How can you identify a proportional relationship from a graph?

Back

A proportional relationship can be identified from a graph if the line passes through the origin (0,0) and is straight.

Front

What is the unit rate in a proportional relationship?

Back

The unit rate is the constant of proportionality expressed as a ratio of y to x when x = 1.

Front

If John made $189 and the equation is y = 9x, how many hours did he work?

Back

John worked 21 hours.

Front

What is the constant of proportionality if the relationship is 45 mph?

Back

The constant of proportionality is 45 mph, indicating the speed in miles per hour.