Is If a Function?

What can be used to determine if a graph represents a function?

• Pythagorean Theorem

• Vertical Line Test

• Horizontal Line Test

• Slope-Intercept Form

Does the graph below represent a function?

• Yes, it represents a function because each input is paired with exactly one output.

• No, it does not represent a function because not every input is paired with exactly one output.

Does the graph below represent a function?

• Yes, it represents a function because each input is paired with exactly one output.

• No, it does not represent a function because not every input is paired with exactly one output.

Tags

CCSS.8.F.A.1

Is this a function?

• Function

• Not a Function

Is this a function?

• Function

• Not a Function

Is this a function? Explain.

• Yes; each x-value has one corresponding y-value.

• No; it is not a straight line.

• Yes; it passes the vertical line test.

• No; there is a line connecting the dots.

Is this is a function or not a function?

• Function

• Not a Function

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

Is this table a function or not a function? 

• Function

• Not a Function 

Tags

CCSS.8.F.A.1

Is this a function?

• Yes, it is a function.

• No, it is not a function.

Tags

CCSS.8.F.A.1