Answer: 0.35
Step-by-step explanation:
3.325 divided by 9.5 = 0.35
I've attached a plot of the intersection (highlighted in red) between the parabolic cylinder (orange) and the hyperbolic paraboloid (blue).
The arc length can be computed with a line integral, but first we'll need a parameterization for

. This is easy enough to do. First fix any one variable. For convenience, choose

.
Now,

, and

. The intersection is thus parameterized by the vector-valued function

where

. The arc length is computed with the integral

Some rewriting:

Complete the square to get

So in the integral, you can substitute

to get

Next substitute

, so that the integral becomes

This is a fairly standard integral (it even has its own Wiki page, if you're not familiar with the derivation):

So the arc length is
Vertex is at the point ( h , v )
The equation of a parabola is:
x = a ( y - v )² + h
Answer: B )
(x; y)
reflect over
x axis (x; -y)
y axis (-x; y)
therefore
(-2; 3)
x axis (-2; -3)
y axis (2; 3)