Identifying Functions

• Yes
• No

Tags

CCSS.8.F.A.1

• Yes
• No

Tags

CCSS.8.F.A.1

• Yes
• No

Tags

CCSS.8.F.A.1

Which set of values represents y as a function of x?

• (9,5) (10,5) (9,-5) (10,-5)
• (3,4) (4,-3) (7,4) (3, 8)
• (6,-5) (7, -3) (8, -1) (9, 1)
• (2, -2) (5, 9) (5, -7) (1, 4)

What is the definition of function?

• Has inputs and outputs

• Every input (x value) has only ONE output (y value)

• Outputs have the same inputs every time

• They have x-values and y-values

How do you determine if a relation on a graph is a function?

• The vertical line test crosses more than one point on the graph.
• The same y-values are mapped more than once from the same x-values.

• The vertical line test crosses only one point on the graph.
• Each input is related to more than one output.

• Function
• Not a Function

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

Which set of values represents y as a function of x?

• (9,5) (10,5) (9,-5) (10,-5)
• (3,4) (4,-3) (7,4) (3, 8)
• (6,-5) (7, -3) (8, -1) (9, 1)
• (2, -2) (5, 9) (5, -7) (1, 4)

Does this graph pass the vertical line test?

• Yes

• No

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