Use completing the square to...
posted by Jenn on .
Use completing the square to describe the graph of the following function support your answer graphically.
f(x)=2x^2+4x+1

f(x)=2x^2+4x+1
= 2(x^2  2x +1  1) + 1
= 2( (x1)^2 1) + 1
= 2(x+1)^2 + 3
you should be able to state the properties you are looking for from that.