Unit 4: Proportional Relationships and Graphing Assessment

Front

What does the point (6, 8) represent in terms of paint mixing?

Back

He mixes 8 cans of white paint with 6 cans of black paint.

Front

What is the constant of proportionality for the graph if the ratio is 40?

Back

The constant of proportionality is 40.

Front

Write an equation for the relationship between x and y in the form y = kx if k = 5.

Back

y = 5x.

Front

What is the unit rate in the proportional relationship of 60 miles in 1 hour?

Back

60 miles/1 hour.

Front

What does the constant of proportionality k = 45 mean in terms of distance and time?

Back

The boat travels 45 miles for every 1 hour.

Front

Define proportional relationship.

Back

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

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity of one.

Front

How do you find the constant of proportionality from a graph?

Back

By identifying the ratio of the y-value to the x-value for any point on the line.

Front

If y = 3x, what is the constant of proportionality?

Back

The constant of proportionality is 3.

Front

What does a graph of a proportional relationship look like?

Back

It is a straight line that passes through the origin.