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.
Which of the models are the questions referring to?
Answer:
1st one twelve times the sum of a number plus twenty four
Step-by-step explanation:
12f=12xf(whatever number it is)
+
24 ^
twelve l
times
the sum of a number + 24
Answer:
Step-by-step explanation:
U have to multiply 49 by 49 and then subtract 9
The -1 affects the coefficient of the entire term.
Without the -1,
the term has a positive coefficient.
(3a)² = 9a²
However, with the -1,
the term has a negative coefficient.
-(3a)² = -9a²