Writing and interpreting functions

What does the rate of change of this graph represent?

• The number of cookies the presenter had before making any presentations

• The number of cookies the presenter gave away during every presentation

• The number of presentations the presenter made per hour

• The maximum number of presentations the presenter made before running out of cookies

16) Find the y-intercept for the table

• 0

• 15/2

• 5

• 1

A construction worker built steps up to a home. The table shows the linear relationship between the height off the ground and the number of steps.

What is the rate of change of height off the ground with respect to the number of steps?

• 14 in. per step

• 1/7 in. per step

• 7 in. per step

• 1/14 in. per step

During which time interval was Xavier riding his scooter at the greatest speed?

• between minute 1and minute 2 of the ride

• between minutes 2 and minute 4 of the ride

• between minute 4 and minute 5 of the ride

• between minutes 5 and minute 8 of the ride

A student rode a bike from school to a recreation center. The graph shows the student’s distance in miles from the recreation center after riding the bike for x minutes. What is the range of the function for this situation?

• All real numbers greater than or equal to 0 and less than or equal to 9

• All real numbers greater than or equal to 0 and less than or equal to 28

• All real numbers less than or equal to 28

• All real numbers less than or equal to 9

The table shows a relationship between x and y. What is the y-intercept in this relationship? ____

*Remember your y -intercept is the y-coordinate when your x is zero.

• -1

• 7

• -7

• 2

The graph shows the water temperature as a function of time. Based on the graph, determine whether the statement is true or false.

The water temperature is increasing between 1 hour and 2 hour.

• True

• False

What happened on this graph from 0 to 7 seconds?

• The helicopter moved up.
• The helicopter stayed at the launching pad.
• The helicopter moved down.
• You can't tell from this graph.

• 1.) f(x)

  2.) h(x)

  3.) g(x)

• 1.) h(x)

  2.) g(x)

  3.) f(x)

• 1.) f(x)

  2.) g(x)

  3.) h(x)

• 1.) h(x)

  2.) f(x)

  3.) g(x)

The graph represents the height of a paper airplane falling.

What is occurring at the point (8,0)?

• The paper plane is 8 feet in the air to start

•  The paper plane is 0 feet in the air after 8 seconds

•  The paper plane has just been thrown