For the following equations, enter
y
if the equation defines as a function of but not vice versa,
x
if the equation defines as a function of but not vice versa,
b
(for "both") if the equation defines as a function of and also as a function of , and
n
(for "neither") if the equation defines neither variable as a function of the other.
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In order to get credit for this problem all answers must be correct.