Answer:

Step-by-step explanation:

When comparing to standard form of a parabola: 
Vertex form of a parabola is:
, which is what we are trying to convert this quadratic equation into.
To do so, we can start by finding "h" in the original vertex form of a parabola. This can be found by using:
.
Substitute in -8 for b and 2 for a.

Simplify this fraction.


The "h" value is 2. Now we can find the "k" value by substituting in 2 for x into the given quadratic equation.

Simplify.


We have the values of h and k for the original vertex form, so now we can plug these into the original vertex form. We already know a from the beginning (it is 2).

The area of the circle is determined through the equation,
A = πr²
Plug in the value of area
36 in² = πr² ; r = 3.385 in
The formula for the circumference of the circle is,
C = 2πr
Substitute the value of radius,
C = 2π(3.385 in) = 6.77π in
Thus, the circumference of the circle is 6.77π inches.
Answer:
Neither
Step-by-step explanation:
Although the lines intersect it is not at a 90° angle meaning it's neither perpendicular or parallel.