The answer is C, a function is when the x value does NOT repeat!
A perpendicular slope is a slope that is the negative reciprocal of the current slope. Therefore, 3.
19.5 and 4.5, as 19.5 + 4.5 = 24 and 19.5 - 4.5 = 15.
So Area = length x width
Area = 450, width = 9
450 = 9 x length
divide 450 by 9, and you have the length.
Perimeter = length + length+ 9 + 9
and you got your perimeter!
