Apps Constant of Proportionality

Front

What is the constant of proportionality?

Back

The constant of proportionality is the ratio between two quantities that are directly proportional to each other. It is often represented by 'k'.

Front

How do you express a ratio as a fraction?

Back

To express a ratio as a fraction, write the first quantity as the numerator and the second quantity as the denominator.

Front

What is the simplest form of the fraction 12/18?

Back

The simplest form of 12/18 is 2/3.

Front

If a table shows a constant of proportionality of $9 per hour, what does this mean?

Back

It means that for every hour, the quantity increases by $9.

Front

How do you find the missing value in a proportional relationship?

Back

To find the missing value, set up a proportion and solve for the unknown variable.

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

What is an example of a constant of proportionality in real life?

Back

An example is the speed of a car, which can be expressed as miles per hour.

Front

How can you determine if a relationship is proportional from a table?

Back

Check if the ratios of corresponding values are equal; if they are, the relationship is proportional.

Front

What is the formula for finding the constant of proportionality?

Back

The formula is k = y/x, where y is the dependent variable and x is the independent variable.

Front

If k = 1.50, what does this indicate about the relationship?

Back

It indicates that for every unit increase in x, y increases by 1.50 units.