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

If 8 slices of pizza cost $12, what is the cost per slice?

Back

$1.50 per slice.

Front

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

Back

Divide the output value by the input value for any pair of corresponding values.

Front

If a car rental costs $18.50 per day, what is the cost for 5 days?

Back

$92.50.

Front

What is the equation for a proportional relationship where y is the total cost and x is the number of items?

Back

y = kx, where k is the constant of proportionality.

Front

If a carpenter charges $40 per hour, how much will 3 hours of work cost?

Back

$120.

Front

Is the relationship between distance and time for a constant speed proportional?

Back

Yes, it is proportional.

Front

What does it mean if a relationship is not proportional?

Back

It means that the ratio between the two quantities is not constant.

Front

If a table shows values (2, 6), (4, 12), (6, 18), what is the constant of proportionality?

Back

3.

Front

What is the formula to calculate the constant of proportionality?

Back

k = y/x.