Question

State the domain and range for each graph and then tell if the graph is a function(write yes or no)

Answer 1

For the point 1)

- The domain will be: (note that this is not an interval, it is a set of two points)

`\mleft\lbrace-3,2\mright\rbrace`

-The range is the set R of all real numbers (since the line extends to infinite)

-The first graph is NOT a function

For the point 2)

-The domain will be the interval

`(-5,5\rbrack`

-The range is the interval:

`\lbrack-2,2\rbrack`

-The second graph is a function.