What is the axis of symmetry of the graph of $y = 3 x^{2} + 6 x + 4$ $y=3x^2+6x+4$ ?

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Answer 1 · 2015-04-29T16:20:07

The equation given to us is in the Standard form
$y = a x^{2} + b x + c$ $y = ax^2 + bx + c$ where $a = 3, b = 6 and c = 4$ $a = 3, b = 6 and c = 4$

The Axis of Symmetry is given by the formula $x = - \frac{b}{2 a}$ $x = -b/(2a)$

$x = - \frac{6}{2 \cdot 3}$ $x = -6/(2*3)$

$x = - \frac{6}{6} = - 1$ $x = -6/6 = -1$

$x = - 1$ $color (green)( x = -1$ is the Axis of Symmetry of the Parabola with the equation $y = 3 x^{2} + 6 x + 4$ $y=3x^2+6x+4$

What is the axis of symmetry of the graph of y=3x^2+6x+4y=3x2+6x+4y=3x^2+6x+4?