<span>16% is the answer Fam.....................................</span>
X<0.25 I'm pretty sure that is the answer
First you find what fits the qualifications of the function.
Part 1: f(0) fits with x<= 1, so you simply plug in 0 for that function.
(0)^2 = 1
Part 2: f(x) = 1
That means there is a horizontal straight line intersecting (0,1)