Constant of Proportionality

Front

What is the constant of proportionality?

Back

The constant of proportionality is the constant ratio between two proportional quantities, often represented as 'k'.

Front

How do you identify if a relationship is proportional?

Back

A relationship is proportional if the ratio between the two quantities remains constant.

Front

What does a proportional graph look like?

Back

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

Front

What is the unit rate?

Back

The unit rate is the ratio of two measurements in which the second quantity is one unit.

Front

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

Back

Divide the value of one quantity by the corresponding value of the other quantity. If the ratio is constant, it is the constant of proportionality.

Front

If the constant of proportionality is k, what is the relationship between x and y?

Back

The relationship can be expressed as y = kx.

Front

What is the formula to find the constant of proportionality?

Back

The constant of proportionality can be found using the formula k = y/x.

Front

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

Back

k = 10/2 = 5.

Front

What does it mean if the constant of proportionality is 'none'?

Back

It means that the relationship between the two quantities is not proportional.

Front

How can you tell if a graph is non-proportional?

Back

A non-proportional graph does not pass through the origin and does not form a straight line.