determine whether 9x-y+16 equals 13 49 y as a function of x
What you typed makes no sense.
Do you mean ...
express 9x-y + 16 = 0 as a function of x ???
if so, then
9x = y-16
x =(y-16)/9
Do you mean ...
express 9x-y + 16 = 0 as a function of x ???
if so, then
9x = y-16
x =(y-16)/9