Evaluating Functions by Graphs

What is the value of x when f(x) = 10?

• x = 10 only

• x = 4 and x = 8

• x = 2 and x = 10

• No solution

Evaluate f(3).

• f(3) = 0

• f(3) = -2

• f(3) = 3

• f(3) = 4

Tags

CCSS.HSF.IF.A.2

For what value of x does f(x) = -2?

• x = 0

• x = -5

• x = 3

• x = -3

Tags

CCSS.HSF.IF.A.2

What is the vertical line test and how is it used to determine if a graph represents a function?

• It is a test used to determine if a graph represents a function by checking if a vertical line intersects the graph at more than one point.

• It is a test used to determine if a graph represents a function by checking if a vertical line intersects the graph at only one point.

• It is a test used to determine if a graph represents a function by checking if a diagonal line intersects the graph at more than one point.

• It is a test used to determine if a graph represents a function by checking if a horizontal line intersects the graph at more than one point.

How can you determine if a given equation represents a function?

• Use the vertical line test

• Check if the equation has more than one solution

• Use the horizontal line test

• Count the number of variables in the equation

Evaluate f(-2).

• f(-2) = 0

• f(-2) = -2

• f(-2) = 3

• f(-2) = 4

Tags

CCSS.HSF.IF.A.2

Evaluate f(5)

• -2

• 0

• 2

• 5

Tags

CCSS.HSF.IF.A.2

What is f(2)?

• -4

• 8

• 0

• 5

Tags

CCSS.HSF.IF.A.2

Evaluate f(8)

• 4

• 0

• 3

• -2

Tags

CCSS.HSF.IF.A.2

• 9

• 13

• 21

• -9

Tags

CCSS.HSF.IF.A.2