Simplify the radicand by breaking the radicand up into a product of known factors.
Answer: -20<span>√7
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After one hour, the plane is 225 miles from its destination
The area is 4 square meters, because 2x2 would be 4
Since x and y are directly related, the equation for their comparison will look like
kx = y
where k is your constant. They give you an instance in the problem where x = 27 and y = 81. Plug this into the above equation and solve for k.
kx = y
k (27) = 81
k = 3
Thus, the constant of variation is 3.
