Question 1169356

What is the vertex of y=2x squared + 4x -3
<pre>Vertex: {{{matrix(1,5, "(", (- b)/(2a), ",", f((- b)/(2a)), ")")}}}


x-coordinate of vertex: {{{matrix(1,7, (- b)/(2a), "=", (- 4)/2(2), "=", (- 4)/4, "=", - 1)}}}

y-coordinate of vertex: {{{matrix(1,5, f(- b/(2a)), "=", f(- 1), "=", 2(- 1)^2 + 4(- 1) - 3)}}}
                                    {{{matrix(2,3, f(- 1), "=", 2 - 4 - 3, f(- 1), "=", - 5))}}}

Vertex: {{{highlight_green(matrix(1,2, "(- 1,", "- 5)"))}}}</pre>