Answer:
12.1
Step-by-step explanation:
The answer would have to be B because of the pi.
The three points give you three equations, which you can solve by your favorite method.
.. 0m +0n +b = 6
.. 1m +0n +b = -3
.. 0m +2n +b = 5
(m, n, b) = (-9, -1/2, 6)
so the equation of the plane can be written as
.. z = -9x -1/2y +6
_____
In standard form, this would be
.. 18x +y +2z = 12
By knowing the volume of a triangle and that the triangle has all equal sides
<u>m= -19/1</u>
We need to use the slope equation

We are working with the points,
(17, 2) and (18, -17)
x1 y1 x2 y2

<u>m= -19/1</u>