Suppose the domain of f is (-1,1). Define the function l by l(x) = f((x - 1)/(x - 3)). What is the domain of l?
x is (-1,1)
numerator x-1 is between -2 and 0
denominator x-3 is between -4 and -2
-2/-2 = 1
0/anything is 0
So the domain of L is (0,1)