Graphs and Functions

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

How can you determine if a table or ordered pairs represents a function?

• for every y-value there is only one x-value

• for every x-value there is only one y-value

• vertical line test

• for every x-value there is more than one y-value

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

Is this graph a function or not a function? 

• Function 
• Not a Function

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

Which equation represents the
values of the ordered pairs below?
x:  -1   0  1  2   3
y:  -1   1  3  5   7

• y = x - 1
• y = 2x + 1
• y = x + 2
• y = x + 1

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which equation is graphed?

• y = x + 2
• y = x - 2

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Gives the coordinates of point D.

• (3, -7)
• (-7, 3)
• (-3, 7)
• (-3,  -7)

Tags

CCSS.6.NS.C.6B

Which of the curves on the graph below indicates a function?

• A only
• A and B
• A, B, and C
• A, B, C, D

Write the equation for the table given

• y = 1/3x
• y = 3x
• y = -1/3x
• y = -3x

Tags

CCSS.6.EE.C.9