SOLUTION: I think this is a graphing question: Find the coordinates of the vertex for the parabola f(x)=-2x^2-2x.

Algebra ->  Graphs -> SOLUTION: I think this is a graphing question: Find the coordinates of the vertex for the parabola f(x)=-2x^2-2x.      Log On


   

Question 634656: I think this is a graphing question:
Find the coordinates of the vertex for the parabola f(x)=-2x^2-2x.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,



Find the coordinates of the vertex for the parabola 

f(x)= -2x^2-2x.   

| completing the Square to find the Vertex: y = ax^2 + bx + c   ⇒ y = a(x -(-b/2a)^2) - a(-b/2a)^2 + c

f(x) = -2(x+1/2)^2 + 1/2    V(-1/2,1/2)

the vertex form of a Parabola opening up(a>0) or down(a<0)is: y=a%28x-h%29%5E2+%2Bk 

where(h,k) is the vertex