Proportional Relationships

Does the graph show a proportional relationship?

• Yes, it's straight and goes through the origin

• Yes, it's straight

• Yes, it goes through the origin

• Yes, the line is pretty

A proportional relationship is written used which of the following equations?

True or False:

Is the following graph proportional?

• True

• False

True or False:

Is the following graph proportional?

• True

• False

Find the constant of proportionality (k).

Determine whether the rates of change are constant or variable.

• Constant, the rates are the same.

• Variable, the rates are not the same.

• Constant, the rates are not the same.

• Variable, the rates are the same.

Find the slope of the following graph.

Find the slope of the line.

Kelly reads 130 pages in 2 hours. If you calculate her rate for each hour, which unit represents the y-variable?

• pages

• hours

10 students ask to use the restroom in 2 periods. This means that ​ (a)   students would ask to use the restroom in 8 periods.

• 40
• 20
• 12
• 4