I dont think so but to justify quads means four and the is no sign of x to the fourth power or y to the fourth power ect.
Answer:
The constant in this expression is 5 (btw, a constant is a number on its own)
Midpoint formula
(x2-x1 / 2) , (y2-y1/ 2)
x = 4-(-2) / 2 = 3
y= -6-2 / 2= -4
midpoint (3, -4)