Functions Graph Input

Which of these tables represent a function?

• A

• B

• C

• D

How do you determine if a relation is a function? 

• The vertical line test crosses more than one point on the graph.

• The same y-values are mapped from the same x-values.

• The vertical line test crosses only one point on the graph.

• Each input is related to more than one output.

Is this a function? Explain.

• Yes; it passes the horizontal line test.

• No; it is not a straight line.

• Yes; it passes the vertical line test.

• No; there is a line connecting the dots.

Is this table a function or not a function? 

• Function 

• Not a function 

Which graph is linear?

• Graph A

• Graph B

• Graph C

• Graph D

Is function represented by the table linear or nonlinear?

• linear

• nonlinear

Is function represented by the table linear or nonlinear?

• linear

• nonlinear

Find the rate of change

• 1

• 2

• 11

• Not a constant slope/Non-Linear

Is the function Linear or Nonlinear?

• Linear

• Nonlinear

Which equations represent linear functions?

• Equations 1 and 2, only

• Equations 1 and 4, only

• Equations 2 and 3, only

• Equations 1, 3, and 4, only