Question

25 POINTS!!

Using a minimum of two sentences, describe how to write the function, f(x) = (x + 2)2 - 3, in standard form.

Answer 1

The standard form of a quadratic function is
`f(x) = ax^2+bx+c`. To convert from vertex form to standard form, first expand the squared term to get
`(x+2)^2=x^2+4x+4` (hint: use foil to expand binomials). Then, simplify by combining like terms.


`f(x)=x^2+4x+4-3=x^2+4x+1`.