Question 139741
Left/Right parabolas have the exponent on the y variable, so you know right off that this is an up/down situtation.  Expand the binomial so that your equation is in the form {{{y=ax^2+bx+c}}}.  If {{{a>0}}}, that is to say if the lead coefficient is positive, then the parabola opens upward.  If {{{a<0}}}, then it opens downward.  Of course, if {{{a=0}}} you don't have a parabola at all.