Interpreting Graphs of PR

What is the slope representing in this graph?

• They make $5 for every candle they sell

• They make $0.20 for every candle they sell

• They make $1 for every candle they sell

• They make $2.50 for every candle they sell

What is the slope of this line showing us?

• 4 cm of rain will fall every hour

• 1 cm of rain will fall every hour

• ¹/₂ cm of rain will fall every hour

• 2 cm of rain will fall every hour

What is the y-intercept showing us?

• We have used no paint

• We will use 5 gallons of blue paint for 3 gallons of yellow paint

• We start off with 5 gallons of blue paint

• We start off with 3 gallons of yellow paint

What does the point (0,0) represent in context of the situation?

• No cookies were sold.

• No money is made selling cookies.

• No money is made when selling two cookies.

• No cookies were sold and no money was made.

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.

• False

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

• True

• The mouse population was the greatest around day 160.

• True

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

• True

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

This graph represents (a)   .

• Constant Speed

• Acceleration

• Not moving

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.

• False

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

• True

• The mouse population was the greatest around day 160.

• True

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

• True

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

Identify the following two points on the graph. The bird's greatest distance from its nest. The point that represents the bird's return to its nest.

a

b

(1)

(2)

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

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