Question 988801
Domain: Set of all real numbers BUT x cannot equal 0. This is to avoid division by zero errors.


Range: Set of all real numbers BUT y cannot equal 0. Why not? Because there is no way to get 9/x equal to 0. The denominator can't be 0. And 9 is always 9. So again, 9/x = 0 has no solutions. 


The graph shows this


{{{ graph( 500, 500, -10, 10, -10, 10, 0,9/x) }}}