Function Review

What is the definition of function?

• Has inputs and outputs
• Every input has only ONE output
• Inputs have different outputs every time
• x-values and y-values

Tags

CCSS.8.F.A.1

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.
• Yes, because each x-value has only one y-value paired with it.
• No, because the x-value 11 has two y-values pair with it.
• No, because each x-value has only one y-value paired with it.

Tags

CCSS.8.F.A.1

Is this table a function or not a function? 

• Function
• Not a Function

Tags

CCSS.8.F.A.1

Is this graph a function or not a function? 

• Function
• Not a Function 

f(x)=2x+1
If f(x)=4, what is the value of x?

• 3/2
• 2
• 1/2
• 4

Tags

CCSS.HSF.IF.A.2

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

• D: {1, -3, -4,}
  R: {0, 1, 2, -4}
• D:{0, 1, 2, -4}
  R:{1, -3, -4}
• D:{0, 1, 2, 3, 4}
  R:{1, -3, -4}

If f(x)=3x-9, find f(5).

• f(5) = 6
• f(5) = 16
• f(5) = -4
• f(5) = 24

Tags

CCSS.HSF.IF.A.2

If f(x)=2x+25, find f(5).

• f(5) = 60
• f(5) = 40
• f(5) = -15
• f(5) = 35

Tags

CCSS.HSF.IF.A.2

Evaluate f(2):

f(x)=3x+1

• 7

• 9

• 11

• 13

Tags

CCSS.HSF.IF.A.2

If g(x)=2x+5, what is the value of g(4)?

(a)  

Tags

CCSS.HSF.IF.A.2