Answer
Axis of symmetry: x=0
Vertex: (0,3)
Work Step by Step
$y=2x^2+3$
The standard form for a quadratic equation is
$y=ax^2+bx+c$
So a= 2, b= 0, and c= 3
Axis of symmetry:
The formula for axis of symmetry is
$$x=−b/2a$$
$$x=−0/2(2)$$
$$x=0$$
Vertex:
Plug in the x value of the axis of symmetry to find the y value of the vertex.
$$y=2x^2+3$$
$$y=2(0)^2+3$$
$$y= 0 + 3$$
$$y= 3$$
The vertex is (0,3)