Functions or Not? re lation - set of ordered pairs do main - input values (or the x's)

Functions or Not? relation - set of ordered pairs domain - input values (or the x's) range - output values (or the y's) function - a relation in which each input is mapped to only one output (no x's can be  repeated). Vertical Line Test - for a graph to be a function, a vertical line cannot touch the graph  in more than one point.

Determine if the following are functions or not Ex. 3: Ex. 1: Ex. 2: -32 -8 0 8 32 -2 0 2 4 4 Ex. 4: -10 -2 6 -3 -1 -2 -1 0 1 2

Ex. 5:

Ex. 6

Ex. 7

Ex. 8

Ex. 9: {(-2,11), (-1,2), (0,-1), (1,2), (2,11)} Ex. 10: {(-18,10), (9,2), (9,-3), (1,-6)}

The collection of all input values or "x" is called  the ________ of a function. The collection of all output values or "y" is  called the ________ of a function. State the domain and range of each  function. Ex. 11: {(3,6), (5,10), (7,14), (9,18)}  Domain:  Range: Ex. 12: {(-18,10), (9,2), (9,-3), (1,-6)}  Domain:  Range:

Ex. 13: Domain: Range:

Functions or Not? re lation - set of ordered pairs do main - input values (or the x's)