Function vs Non-Functions

• Function
• Not a Function

Which set of ordered pairs represents a function?

• <(p>{(3, 2), (4, 4), (6, 3), (4, 5)}

• <(p>{(4, –3), (4, –1), (4, 3), (4, 6)}

• <(p>{(–4, 4), (–2, 4), (1, 4), (5, 4)}

• <(p>{(–3, –3), (–2, –4), (–2, –1), (–1, –5)}

Tags

CCSS.8.F.A.1

• Function
• Not a Function

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

Does the graph represent a function? Does it pass the vertical line test?

• Yes, because the vertical line test shows there are no repeating input values

• No, because the vertical line test shows there are repeating input values

• No, because there are not enough dots to tell

• Yes because the dots are all  red

A relation where every input in matches with exactly one output is called what?

• Relation

• Linear

• Exponential

• Function

Tags

CCSS.8.F.A.1

Is this a function? Explain.

• Yes; it passes the horizontal line test.

• No; it is not a straight line.

• Yes; it passes the vertical line test.

• No; there is a line connecting the dots.

• Function
• Not a Function

• Function
• Not a Function
• Venn Diagram
• T - Table

Tags

CCSS.8.F.A.1

• It is a function because no vertical lines hit it twice.
• It's not a function because a vertical line hits it twice.
• It's not a function because no vertical lines hit it twice.
• It is a function because a vertical line hits it twice.