This function is consist of two subfunction with different domains.
f(-1) means x= -1 ≤ 1 and we will use subfunction -x+2 => f(-1)=-(-1)+2= 1=2=3
f(3) means x=3 > 1 and we will use subfunction x∧2-4x+6 =>
f(3)= 3∧2-4*3+6= 9-12+6=3
Good luck!!!
