Functions Review

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 the relation a function? 
{(4,5), (4,-7), (4,2), (4,0), (4,9)}

• Yes
• No

Tags

CCSS.8.F.A.1

Which relation is NOT a function?

• {(1,-5), (3,1), (-5,4), (4,-2)}
• {(2,7), (3,7), (4,7), (5,8)}
• {(1,-5), (-1,6), (1,5), (6,-3)}
• {(3,-2), (5,-6), (7,7), (8,8)}

Tags

CCSS.8.F.A.1

Given f(x) = x + 3, find f(-2).

• -1

• 1

• 5

• -5

Tags

CCSS.HSF.IF.A.2

A relation where every input yields one and only one output is called what?

• Relation
• Linear
• Exponential
• Function

Tags

CCSS.8.F.A.1

Is this mapping a function or not a function? 

• Function
• Not a Function

Tags

CCSS.8.F.A.1

For the function {(0,1), (1,-3), (2,-4), (-4,1), (x,0)}, what can x NOT be in order for this to be a function?

• 0, 1, 2, 4

• 0, 1, 2, -4

• 1, -3, -4,

• 0, 1, -4, 2

Tags

CCSS.8.F.A.1

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 this table a function or not a function? 

• Function
• Not a Function

Tags

CCSS.8.F.A.1

Evaluate f(x)= -2x + 13   for f(10)

• -7
• 1
• -8
• 7

Tags

CCSS.HSF.IF.A.2