Math 8/Math 1 Functions

Which set of values is a function?

• (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)

Tags

CCSS.8.F.A.1

What is the definition of function?

• Has inputs and outputs
• Every input has only ONE output
• Inputs have different outputs every time
• x-values and y-values

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Is this graph a function and how can you tell?

• Yes its a function cause it doesn't cross itself
• No it's not a function because it goes through the origin
• No it's not a function because it touches the vertical line test more than once
• No it's not a function because it does not touch the vertical line test more than once

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.5

CCSS.HSF.IF.C.7

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

Tags

CCSS.8.F.A.1

Does the graph represent a function?

• 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

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.5

Which graph does NOT pass the vertical line test?

• Graph 1
• Graph 2
• Graph 3
• Graph 4

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

Which graph describes a Function?

• F

• G

• H

• J

Which of the following guarantees a set of ordered pairs will not be a function?

• An x value repeats
• A y value repeats
• An x value repeats and has different y values
• A y value repeats and has different x values

Tags

CCSS.8.F.A.1

Wellllllll?

• It's a function, enough already!

• It's not a function, enough already!

• What's a function again?

• Is it dismissal time yet?

Tags

CCSS.8.F.A.1

Which set of coordinates describe a function?

• A {(2, 4), (-2, 7), (6, 2), (-2, 8)}

• B {(7, 2), (3, 9), (3, 10), (-1, 7)}

• C {(7, -4), (3, -3), (2, -2), (7, -8)}

• D {(6, 3), (-6, 4), (4, 0), (1, 2)}

Tags

CCSS.8.F.A.1