Sheridan16
What's the vertex of y=x^2+6x+8?(



This Question is Open

BluFoot
Best Response
You've already chosen the best response.
1
xcoordinate of vertex when y=ax^2+bx+c = b/2a

abb0t
Best Response
You've already chosen the best response.
0
Start by completing the square first.

BluFoot
Best Response
You've already chosen the best response.
1
Once you have the xcoordinate you can easily solve for ycoordinate by plugging in

Helly
Best Response
You've already chosen the best response.
1
the answer is {3,1} have a nice day=D

abb0t
Best Response
You've already chosen the best response.
0
HINT: Remember that the vertex form is: \[y = a(xh)^2+k\]

Helly
Best Response
You've already chosen the best response.
1
aw thanks=D Im really good with problems that don't involve words lol

abb0t
Best Response
You've already chosen the best response.
0
giving away the answer doesn't help the person learn, @Helly :P

Helly
Best Response
You've already chosen the best response.
1
SORRY=(

Sheridan16
Best Response
You've already chosen the best response.
0
How do you figure out if its the maximum or minimum?

BluFoot
Best Response
You've already chosen the best response.
1
Is the curve going up or down? Look at the sign of "a"

abb0t
Best Response
You've already chosen the best response.
0
You could take a few derivatives.