# SOLUTION: Can you please assist me in this problem? Find the axis of symmetry for y = x^2 - 9x +3. Thanks Neitra

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 Question 279702: Can you please assist me in this problem? Find the axis of symmetry for y = x^2 - 9x +3. Thanks Neitra Found 2 solutions by nerdybill, scott8148:Answer by nerdybill(7375)   (Show Source): You can put this solution on YOUR website! For ANY quadratic: Ax^2 + Bx + C the axis of symmetry is just: x = -b/(2a) (which is from the quadratic equation) . Therefore, for your problem: Find the axis of symmetry for y = x^2 - 9x +3. b is -9 a is 1 . x = -(-9)/(2*1) x = 9/2 It is the vertical line that crosses the x-axis at 9/2. Answer by scott8148(6628)   (Show Source): You can put this solution on YOUR website! the general equation is ___ x = -b / (2a) in this case ___ x = -(-9) / 2 = 9/2