Proportionality with Proportional Graphs and 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

True or False: The constant of proportionality is also the unit rate.

Back

True

Front

What does a proportional table look like?

Back

A proportional table shows a constant ratio between the values in two columns, meaning that as one value increases, the other increases at a consistent rate.

Front

Is the following table proportional or non-proportional? (Example: x: 1, 2, 3; y: 2, 4, 6)

Back

Proportional

Front

Write an equation for the situation: A car travels 19.25 miles for every hour driven.

Back

y = 19.25x

Front

If Craig earns $37 for 4 hours, what is his hourly rate?

Back

$9.25 per hour.

Front

What is the unit rate if a person earns $64.75 for 7 hours?

Back

$9.25 per hour.

Front

How can you determine if a graph is proportional?

Back

A graph is proportional if it passes through the origin (0,0) and forms a straight line.

Front

Is the following graph proportional or non-proportional? (Example: a line that does not pass through the origin)

Back

Non-proportional.

Front

What is the formula for finding the constant of proportionality from a table?

Back

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