Question 988024
Please help me with this problem:
Find the equation of the axis of symmetry and the coordinates of the vertex of the graph of the quadratic function {{{y = 2x^2 + 2x - 3.}}}
<pre>Axis of symmetry/x-coordinate of vertex: {{{x = - 2/(2 * 2)}}}, or {{{x = - 1/2}}}
y-coordinate of vertex: {{{2(- 1/2)^2 + 2(- 1/2) - 3}}}, or {{{2(1/4) - 1 - 3}}}, or {{{- 3&1/2}}}
Coordinates of vertex: ({{{- 1/2}}}{{{","}}}{{{- 3&1/2}}})