Proportional Relationships 7th Grade

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other quantity is constant.

Front

What is the constant of proportionality in the equation y = kx?

Back

The constant of proportionality is the value 'k' that represents the ratio of y to x.

Front

Write an equation for a proportional relationship where y is 18.50 times x.

Back

y = 18.50x

Front

True or False: The horizontal axis is the x-axis.

Back

True

Front

What is the origin in a coordinate plane?

Back

The origin is the point (0, 0) where the x-axis and y-axis intersect.

Front

In the equation y = 14x, what does the number 14 represent?

Back

The number 14 represents the constant of proportionality.

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division.

Front

If the ratio of x to y is 3:4, what is the constant of proportionality?

Back

The constant of proportionality is 3/4.

Front

What does it mean if two quantities are directly proportional?

Back

It means that as one quantity increases, the other quantity increases at a constant rate.

Front

How do you find the missing number in a ratio table?

Back

You can use the known ratios to set up a proportion and solve for the missing number.