Proportional Relationships - Equations

Front

What does k represent in the equation y = kx?

Back

The constant of proportionality.

Front

In the equation y = 2x, what is the constant of proportionality?

Back

2

Front

What is the unit rate for rainfall if it is 2 cm per hour?

Back

2 cm per hour.

Front

Write the equation for a proportional relationship where y is three times x.

Back

y = 3x.

Front

In the equation y = 14x, what is the constant of proportionality?

Back

14.

Front

What is a proportional relationship?

Back

A relationship where two quantities maintain a constant ratio.

Front

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

Back

By dividing the value of y by the corresponding value of x.

Front

What is the graphical representation of a proportional relationship?

Back

A straight line that passes through the origin.

Front

If y = kx and k = 5, what is the value of y when x = 3?

Back

y = 15.

Front

What is the formula for finding the unit rate?

Back

Unit rate = total quantity / number of units.