Answer:
The degree equal to 11.
because 5 + 6 = 11
Just add 5 and 6 together
Slope form y2-y1 / x2-x1 = m
20 - 9 = 11
12 - 4 = 9
The slope of the line is 11/9
So the quadrilateral is a rhombus. RSM Is hard and etc...
Anyways if the area =

and we know that one diagonal is 14.5 inches and we know that the area of a rhombus is
then we can do inverse operation and do
4 * 2 because of the inverse operation has to be done to get the right answer and then you get the length of diagonal 2 is 8 in
That is all correct, good job!
b represents rate of change