Question 783363
2x^2 - 12x + 3y + 21 =0
isolate y
3y = -2x^2 + 12x - 21 
Divide both sides by 3
y = {{{-2/3}}}x^2 + 4x - 7
Graph this equation
{{{ graph( 300, 200, -10, 10, -15, 5, (-2/3)x^2 + 4x - 7 ) }}}