The slope is 1, because the slope form is:

Where the m is the slope. Here, m=1.
Answer:
or 12.57
Step-by-step explanation:
or 12.57
There are three possible results when a plan intersects with a three-dimensional figure and these are:
a point
a line
a plane
The first step in describing the result is to determine first how the plane and the figure intersects.
They lie in the same plane is the answer ;)