Math 7: Constant of Proportionality From Tables

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 y = 4x, what is the constant of proportionality?

Back

4

Front

If y = (1/4)x, what is the constant of proportionality?

Back

1/4

Front

If y = (1/5)x, what is the constant of proportionality?

Back

1/5

Front

If y = 4x, what does this tell us about the relationship between x and y?

Back

As x increases, y increases at a rate of 4 times x.

Front

What is the formula to find the constant of proportionality from a table of values?

Back

k = y/x, where y is the output and x is the input.

Front

How do you determine if two quantities are proportional?

Back

Two quantities are proportional if their ratios are constant.

Front

What is the constant of proportionality if y = 30 when x = 15?

Back

2 (since 30/15 = 2).

Front

If a recipe calls for 2 cups of flour for every 3 cups of sugar, what is the constant of proportionality for flour to sugar?

Back

2/3.

Front

How many teaspoons are equivalent to 6 milliliters?

Back

1.2 teaspoons.