SOLUTION: i have never used your site before but a lot of kids at my school swear by you guys. We are working on parabolas and I have no clue. I need to determine the vertex of the graph of

Algebra ->  Coordinate-system -> SOLUTION: i have never used your site before but a lot of kids at my school swear by you guys. We are working on parabolas and I have no clue. I need to determine the vertex of the graph of       Log On


   

Question 46116: i have never used your site before but a lot of kids at my school swear by you guys. We are working on parabolas and I have no clue. I need to determine the vertex of the graph of the parabola from the following
y= x squared + 9
hope you guys are as good as everyone says. thanks and have a good one
Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
Standard Form: y+=+ax%5E2+%2B+bx+%2B+c
Equation: y+=+x%5E2+%2B+9
a=1 : b=0 : c=9
vertex is found by: ((-b/2a),f(x))
((-0/2),f(x))
(0,f(x)) to find f(x), you plug in the x value into your equation: y+=+0%5E2+%2B+9+=+9
(0,9)
graph%28600%2C600%2C-10%2C10%2C-2%2C18%2Cx%5E2%2B9%29