Function Quiz 24/25

What test can we use to determine if a graph is a function?

• Horizontal Line Test

• Vertical Line Test

• Diagonal Line Test

• Slope of a Line Test

Is this a function?

• Yes

• No

Is this a function?

• No

• Yes

Is this a function?

• Yes

• No

Is this a function?

• Yes

• No

Is this a function?

• Yes

• No

Is this a function?

• Yes

• No

What makes something a function?

• Every output has exactly one input

• Every output has more than one input

• Every input has exactly one output

• Every input has more than one output

Is this mapping a function and how can you tell?

• Yes its a function cause all the numbers have lines
• No it's not a function because there a 5 in both ovals
• No it's not a function because the x value 5 has y values of  2 & 9
• No it's not a function because the y value 5 has x values of  2 & 9

Is this set of ordered pairs a function and how can you tell?

• Yes its a function because no y values repeat
• No it's not a function because there are negative numbers
• No it isn't a function because an x value repeats but has different y values 
• No it isn't a function because an y value repeats but has different x values