Answer:
The vertex of this parabola is
Step-by-step explanation:
One way of finding the x-coordinate of the vertex of a parabola is by using the equation
From the function , we can see that
This means that
So, the x-value of the vertex is -2. Now, we can plug this x-value into the function to find the y-coordinate of the point.
Thus, the vertex of this parabola is
For this case we have that by definition, the perimeter of a circle is given by:
Where:
r: It is the radius of the circle.
According to the figure, it is observed that the radius of the circle is 2. Then:
Let's remember that we have a quarter circle:
We round and we have that the correct option is
Answer:
Option A
The attached figure is the image that completes the question
