How do you write #y = -4x^2 + 8x + 60# into vertex form?
2 Answers
May 10, 2015
As I mentioned on another answer:
In general, for
May 10, 2015
Another way:
Vertex form:
-b/2a = -8/-8 = 1
f(1) = -4 + 8 + 60 = 64
Vertex form:
Check: