Question 112911
The given expression can be written as:  


{{{(x-2)^2 = 2(y-1)}}}


{{{(x - 2)^2 = 2y - 2}}}


{{{((x - 2)^2 + 2)/2 = y }}} 


Thus the graph of the given parabola looks like this 


{{{ graph( 300, 300, -15, 15, -15, 15,(x - 2)^2/2 + 1 ) }}}