Function Basics

Which of the following best defines a function?

• A relation where each input has exactly one output.

• A relation where each input can have multiple outputs.

• A relation where each output has exactly one input.

• A relation where each output can have multiple inputs.

Tags

CCSS.8.F.A.1

• 5

• 8

• 11

• 15

Tags

CCSS.HSF.IF.A.2

• 3

• 7

• 11

• 15

Tags

CCSS.HSF.IF.A.2

Which of the following graphs represents a function?

• A vertical line.

• A circle.

• A parabola opening upwards.

• A horizontal line.

• -11

• -1

• 1

• 11

Tags

CCSS.HSF.IF.A.2

• 2

• 3

• 4

• 5

Tags

CCSS.HSF.IF.A.2

• The output is 13.

• The output is 15.

• The output is 17.

• The output is 18.

Tags

CCSS.HSF.LE.B.5

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

Does this mapping diagram represent a function?

• No, because an input value goes to multiple output values
• Yes, because each input goes to one and only one output

Tags

CCSS.8.F.A.1