Identifying Functions from Graphs

The given relation is a function.

• True

• False

Tags

CCSS.8.F.A.1

Determine if the following is a function or not.

• Function

• Not a Function

Determine if the following is a function or not.

• Function

• Not a Function

Which relation is shown in the graph?

• <(4, -5), (0, -1), (-1, 3), (5, 3)>

• {(-5, 4), (-1, 0), (3, -1), (3, 5)}

• {(5, -4), (1, 0), (-3, 1), (-3, -5)}

• {(-4, 5), (0, 1), (1, -3), (-5, -3)}

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Does this mapping diagram represent a function?

• No, because an input value goes to multiple output values

• Yes, because each input goes to one and only one output

Tags

CCSS.8.F.A.1

How do you use the vertical line test?

• Draw vertical lines through your graph. If any of the vertical lines you draw intersects the graph more than once then the graph is not the graph of a function.

• Draw vertical lines through your graph. If any of the vertical lines you draw intersects the graph more than once, then it is 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 of the graphs are examples of functions?

• 
• 
• 
• 

Is this graph a function?

• Yes, it is a function.

• No, it is not a function.

Tags

CCSS.8.F.A.1

Is this graph a function?

• Yes, it is a function.

• No, it is not a function.