Question

What's the vertex of y=x^2+6x+8?(

Answer 1

x-coordinate of vertex when y=ax^2+bx+c = -b/2a

Answer 2

Start by completing the square first.

Answer 3

Once you have the x-coordinate you can easily solve for y-coordinate by plugging in

Answer 4

the answer is {-3,-1} have a nice day=D

Answer 5

HINT: Remember that the vertex form is: \[y = a(x-h)^2+k\]

Answer 6

aw thanks=D Im really good with problems that don't involve words lol

Answer 7

giving away the answer doesn't help the person learn, @Helly :P

Answer 8

SORRY=(

Answer 9

How do you figure out if its the maximum or minimum?

Answer 10

Is the curve going up or down? Look at the sign of "a"

Answer 11

You could take a few derivatives.