Given:
The quadratic equation is

To find:
The vertex of the given quadratic equation.
Solution:
If a quadratic function is
, then

We have,

It can be written as

...(i)
Here,
.



Putting
in (i), we get
On further simplification, we get
So, the vertex of the given quadratic equation is
.
Therefore, the correct option is A.
Answer:
I'm sorry but of what perhaps you can repost and i will answer your question.
Step-by-step explanation:
There are cone shells
also maybe a flower
420-17%= 348.6
This is it because she read 420 pages during the summer but then she reads 17% less which is subtracting then get the answer which is 348.6
X=6-58
X=(-52)
You use the inverse operation to get X by itself.