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. Enter
x
,
y
,
b
, or
n
, as appropriate.
.
.
.
.
In order to get credit for this problem all answers must be correct.