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

Write an equation for a proportional relationship where the constant of proportionality is 18.50.

Back

y = 18.50x

Front

If a table shows a proportional relationship, what can you say about the ratios of the values?

Back

The ratios of the values in a proportional relationship are constant.

Front

How do you determine if a relationship is proportional from a graph?

Back

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

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

What does it mean if a relationship is described as non-proportional?

Back

A non-proportional relationship does not have a constant ratio between the quantities.

Front

Determine the constant of proportionality if y = 0.2x.

Back

The constant of proportionality is 0.2.

Front

Is the relationship represented by the table proportional? If so, what is the constant?

Back

Yes; the constant is 3.

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 = 22x, what is the constant of proportionality?

Back

The constant of proportionality is 22.