Question

Find the vertex of the parabola formed by the following quadratic function: y = x2 + 8x − 4

Answer 1

i can figure it out by graphing....

Answer 2

the vertex can be calculated using complete square method

Answer 3

or applying:

\[u= -\frac{b}{2a} \]
and
\[ v=f(u) \]

Answer 4

lol .... you said, f(u) :)

Answer 5

haha!
True!

Answer 6

he meant to do that...

Answer 7

That's how I roll.

Answer 8

the -b/2a was my first thought :)