You've to convert into the form .
In you other topic you used the technique 'completing the square', use this technique for this exercice.
Notice:
The vertex is the vertex of the parabola: .
Just like a second opinion please.
I have a parabola y = x^2 - 10x - 8
I have the equation y = a(x - h)^2 + K
where (h, k) are the vertex
am I right to change the signs and write;
h = 10
k = 8
so the vertex of y = x^2 - 10x - 8
= (10, 8)
Thanks
If you've a polynomial in the form:
then like you said, you can determine the coordinates of the vertex directly: (h,k)
If you've a polynomial in the form:
then you've to convert this polynomial into the form
In case of your exercice, you have given a polynomial in the form so convert it to the other form (by using 'completing the square, like you did in your previous topic)
So, can you write:
into the form: ?