Question

What is the axis of symmetry of the function `y=x^2-1`?

Answer 1

The equation given to us is in the Standard form
`y = ax^2 + bx + c` where `a = 1, b = 0 and c = -1`

The Axis of Symmetry is given by the formula `x = -b/(2a)`

`x = -0/(2*1)`

`color (green)( x = 0` is the Axis of Symmetry of the Parabola with the equation `y=x^2-1`