Identifying Graphs with Functions

Does the table represent exponential GROWTH or DECAY?

• Growth

• Decay

Tags

CCSS.HSF-LE.A.1A

Does the following graph represent a function?

• Yes, because each input has exactly one output.

• Yes, because each output comes from exactly one input.

• No, because there are multiple inputs.

• No, because there are multiple outputs.

Tags

CCSS.8.F.A.1

Consider this graph of a function. Which of the following inputs would produce an output of 0? Check all that apply.

• 0

• 1

• 2

• –2

• –1

Does this graph represent a function? Explain why or why not. [Hint: look carefully at the dots.]

• Yes, each input has exactly one output.

• No, there are infinite inputs with an output of 2.

• No, 3 has two different outputs.

• No, the graph does not have a consistent slope.

• Function: It passes the Vertical Line Test

• Not a function: It fails the Vertical Line Test

• Function: All the points are distinct

• Not a function: Some points are not distinct

Tags

CCSS.8.F.A.1

When graphed on the coordinate plane, a two-variable equation is a function iff its graph passes the...

• Vertical Line Test

• Horizontal Line Test

• Converging Arrows Test

• Diverging Arrows Test

Which of the mapping diagrams below represent functions? Check all that apply.

• 
• 
• 
• 

Tags

CCSS.8.F.A.1

Which of the graphs below represent functions? Check all that apply.

• 
• 
• 
• 

Does the following mapping diagram represent a function? Explain why or why not.

• Yes, each input has at least one output

• No, 40 has two different outputs.

• Yes, each output has at least one input

• No, 2 and 5 each have two different inputs.

Tags

CCSS.8.F.A.1

Does this scatter plot represent a function? Explain why or why not.

• Function: Each input has at least one output.

• Not a function: 2 has two different outputs.

• Function: Each output has at least one input.

• Not a function: -1 and 1 both have two different inputs.

Tags

CCSS.8.F.A.1