Question

Find the vertex and axis of symmetry of the graph of the function.

f(x) = x^2 + 13x + 6

Answer 1

x^2 + 13x + 6
(x + 13/2)^2 - (13/2)^2 + 6
= (x + 13/2)^2 - (13/2)^2 + 6
Vertex is minimum when x = - 13/2
This is also the axis of symmetry