SOLUTION: I need help with this parabola question it is hard for me to find the vertex of this question. Find the vertex of the parabola y = 12 x + 4 - x^2. Enter your answer as a point

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Question 622703: I need help with this parabola question it is hard for me to find the vertex of this question.

Find the vertex of the parabola y = 12 x + 4 - x^2. Enter your answer as a point (h,k), including the parentheses.
The vertex is at the point:
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
 

Hi,

y = 12x + 4 - x^2.    |putting into the general order...

 y = ax^2 + bx + 4 

y = -x^2 + 12x + 4    |putting into Vertex Form  by completing the Square

y = -(x-6)^2 + 36 + 4

y = -(x-6)^2 + 40   V(6,40)

If You are having difficulty completing the Square, this short-cut may help:

  

   

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