Answer =-0.7x +0
Find the gradient by y2-y1/x2-x1
-14 -7/ 20- -10
-21/30
-0.7
And plug in the coordinates to find the y intercept
7= -0.7 (-10) + c
C=0
We want to simplify √(-48).
Note that
i² = -1 by definition.
Therefore

Answer: c.
The easy answer: If, say, B is the zero matrix, i.e.

then
