Graphing Proportional Relationships

Front

Will a Proportional Relationship graph as a curved line?

Back

Never

Front

Is this graph proportional? (It passes through the origin and is a single straight line)

Back

Yes, it passes through the origin and is a single straight line

Front

Which variable is represented by the horizontal axis?

Back

x

Front

Proportional? (Graph shows a straight line through the origin)

Back

Yes

Front

The constant of proportionality is the same as...

Back

the unit rate

Front

What does it mean for a relationship to be proportional?

Back

A proportional relationship means that two quantities increase or decrease at the same rate.

Front

What is the formula for a proportional relationship?

Back

y = kx, where k is the constant of proportionality.

Front

How can you identify a proportional relationship on a graph?

Back

A proportional relationship is identified by a straight line that passes through the origin.

Front

What is the unit rate in a proportional relationship?

Back

The unit rate is the constant of proportionality, representing the amount of y for one unit of x.

Front

If the graph of a relationship does not pass through the origin, is it proportional?

Back

No, if it does not pass through the origin, it is not a proportional relationship.