7.4C Constant of Proportionality

Front

What is the constant of proportionality?

Back

The constant of proportionality is the ratio between two proportional quantities, often represented by 'k' in the equation y = kx.

Front

In the equation y = kx, what does 'k' represent?

Back

'k' represents the constant of proportionality.

Front

If 100 is earned for each hour worked, what is the constant of proportionality?

Back

The constant of proportionality is 100.

Front

How can you determine if a table of values is proportional?

Back

A table is proportional if the ratio of y to x is constant for all pairs of values.

Front

What does a proportional relationship look like on a graph?

Back

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

Front

If y = ½x, what is the constant of proportionality?

Back

The constant of proportionality is 1/2.

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

Is the relationship between hours worked and money earned proportional if $500 is earned for every 8 hours worked?

Back

Yes, it is proportional because the ratio of money earned to hours worked is constant.

Front

What is the definition of a proportional relationship?

Back

A proportional relationship is one where two quantities maintain a constant ratio.

Front

If a graph shows that $300 is earned after working 4 hours, what is the constant of proportionality?

Back

The constant of proportionality is 75, calculated as 300/4.