How to convert quadratic function in General form into standard form.

Question

Can you give an example

Answer 1

y = x^2 + 4x + 4 is general form, y =ax^2 +bx +c with a=1, b=4, c=4

complete the square, rewrite as a squared expression

y = (x+2)^2 is standard or vertex form with vertex = (-2, 0), y = (x-h)^2 +k, with (h,k)= vertex and h=-2, k=0