Given no other restrictions, what are the domain and range of the following function?
f(x) = x2 – 2x + 1
a) d= all real numbers
r= all real numbers
b) d= all real numbers
r = {yly > -1}
c) d=all real numbers
r= {yly > 0}
d) d= {x | x> 0}
r= {yly < 1}