Question

axis of symmetry for this parabola? y=-2x^2+4x+1

Answer 1

Axis of symmetry is either the maxima or the minima of the parabola, so use
\[x=-\frac{b}{2a}\]
To find your 'x', once you've got 'x', substitute it back into the equation to find 'y', and you'll have your coordinate at the axis of symmetry.