Question

What is the vertex of the function f(x) = x2 + 12x?

Answer 1

To find vertex you can use the equation

\(x=\large \frac{-b}{2a}\)
The standard form is written as \(\large f(x)=ax^2+bx+c\)

Just substitute the values you have and find x, once you have x, substitute it back into the original equation to find y