Answer: The Answer is 10
Step-by-step explanation:
so you take the average of the x coordinates and the average of the y coordinates to get the midpoint like this
The given equation of parabola is
Which can also be written as
Here vertex (h,k) is (1,2)
And value of a is
Formula of focus is
Substituting the values of h,k and a, we will get
Therefore the correct option is the last option .