Topic 3 Test Review

How do you read f(x)?

• f x

• f of x

• f parenthesis x

• f with an x inside parenthesis

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What is the definition of a function?

• Has inputs and outputs

• Inputs have different outputs every time

• x-values and

  y-values

• Every input has only one output

Tags

CCSS.8.F.A.1

g(15) = -1
Convert to a coordinate point.

• (15, -1)

• (-1, 15)

• (1, 15)

• (-15, -1)

• (15, 1)

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

• 2 is the input

• 5 is the independent variable

• there is no input

• 5 is the input

• 2 is the same as 5 and are both inputs

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

• 7

• 10

• neither 7 or 10

• h(x)

• both 7 and 10

Tags

CCSS.HSF.IF.A.2

The speed of the baseball is a function of the time since the baseball was hit by a bat. What does f(2) = 80 represent in this situation?

• After 2 seconds the baseball is traveling at 80mph

• After 80 seconds the baseball is traveling at 2mph

• The baseball traveled 80mph for 2 seconds

• The baseball traveled 2mph for 80 seconds

Tags

CCSS.HSF.IF.A.2

The speed of a baseball, measured in mph, is a function of the time since it has been hit by a bat, measured in seconds. What does f(3) represent in the situation?

• The speed of the ball after 3 seconds.

• The ball traveled for 3 seconds.

• The speed of the ball is 3mph

• The ball stopped at 3 seconds

Tags

CCSS.HSF.IF.A.2

The height of a plant, in inches, is a function of the time it takes to grow, measured in weeks. What does the notation h(10) represent?

• The plant is 10 inches tall.

• The height of the plant after 10 weeks.

• The plant stopped growing after 10 weeks.

• The time it took the plant to grow its tallest.

Tags

CCSS.HSF.IF.A.2

The height of a plant, in inches, is a function of the time it takes to grow, measured in weeks. What does the notation h(12) = 16 represent?

• The plant is 12 inches tall after 16 weeks.

• The plant is 16 inches tall after 12 weeks.

• The plant will remain 12 inches tall for the next 16 weeks.

• The plant will remain 16 inches tall for the next 12 weeks.

Tags

CCSS.HSF.IF.A.2

Let f(x) be the temperature outside x hours after 8:00 AM. What is the meaning of

  $f\left(3\right)=50$  ?

• At 3:00 PM it will be 50 degrees outside.

• At 11:00 AM it will be 50 degrees outside.

• The temperature at 3:00 AM and  11:00 AM is the same.

• 50 hours after 8:00 AM the temperature will be 3 degrees.

Tags

CCSS.HSF.LE.B.5