Answer :
the y-axis, that is x = 0
the equation of a parabola in the form f(x) = ax²
has it's vertex at the origin and since the axis of symmetry passes through the vertex then
the axis of symmetry is the y- axis
the y-axis, that is x = 0
the equation of a parabola in the form f(x) = ax²
has it's vertex at the origin and since the axis of symmetry passes through the vertex then
the axis of symmetry is the y- axis