Function Graphs Interpret

Look at the table that shows the amount of water in the swimming pool over time.

Which graph below could model this situation?

• 
• 
• 
• 

What is the y-intercept of this situation?

• 400

• 150

• 50

• -50

Which equation models how the gallons of water in the pool (y) changed over time (x)?

• y = 400 - 50x

• y = -50

• y = 400

• y = 400 + 50x

During what time (seconds) was the balloon decreasing in length?

• 0 - 12 seconds

• 0 - 15 seconds

• 9 - 10 seconds

• 12.5 - 15 seconds

Match the following This graph shows the population of mice in a study, modeled as a function of time. The study begins on day 0 and ends on day 200. Select True or False for each statement.

• True

• The mouse population was decreased between day 40 and day 80.

• False

• The least number of mice during the study was 130.

• True

• There are two intervals of time where the mouse population decreases.

• True

• The mouse population was the greatest around day 160.

A bird flies out of its nest.  This graph represents the distance it flies from its nest (in meters) as a function of time (in seconds).

Place a X to mark the point on the graph that represents the bird’s greatest distance from its nest.

Place a O to mark the point that represents the bird’s return to its nest.

a

b

X

O

A bird flies out of its nest.  This graph represents the distance it flies from its nest (in meters) as a function of time (in seconds).

Place a X to mark the point on the graph that represents the bird’s greatest distance from its nest.

Place a O to mark the point that represents the bird’s return to its nest.

a

b

O

X

Match the following This graph shows the population of mice in a study, modeled as a function of time. The study begins on day 0 and ends on day 200. Select True or False for each statement.

• True

• There are two intervals of time where the mouse population decreases.

• True

• The mouse population was the greatest around day 160.

• False

• The least number of mice during the study was 130.

• True

• The mouse population was decreased between day 40 and day 80.

This graph represents (a)   .

• Constant Speed

• Acceleration

• Not moving

What was the maximum length of the balloon (inches) before it started decreasing in length?

• 3 inches

• 12 inches

• 15 inches

• 15 seconds