Constant of Proportionality

Front

What is the constant of proportionality?

Back

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

Front

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

Back

To find the constant of proportionality from a table, divide the value of y by the corresponding value of x for any pair of values.

Front

If y = 18.50x, what is the constant of proportionality?

Back

The constant of proportionality is 18.50.

Front

If y = 19.25x, what is the constant of proportionality?

Back

The constant of proportionality is 19.25.

Front

If Justin ordered 5 ice cream bars for $12.25, how much was each ice cream bar?

Back

Each ice cream bar costs $2.45.

Front

Craig earns $37 for 4 hours of work. What is his hourly rate?

Back

His hourly rate is $9.25.

Front

What is the equation for a proportional relationship where y = 9x?

Back

The constant of proportionality is 9.

Front

If the constant of proportionality is 8, what is the equation for the relationship?

Back

The equation is y = 8x.

Front

What does it mean if two quantities are proportional?

Back

Two quantities are proportional if they maintain a constant ratio to each other.

Front

How can you represent a proportional relationship graphically?

Back

A proportional relationship can be represented by a straight line that passes through the origin on a graph.