Question 1165865


domain:  

looking the graph and x-axis:

 graph starts at point {{{x=-2}}} and goes to the left  
 graph starts at point {{{x=2}}} and goes to the right

so, these values are included in domain which will be


({{{-infinity}}}, {{{-2}}}]  U [{{{2}}},{{{infinity}}})


range:  
how far up and down does graph go

({{{-infinity}}},{{{infinity}}})