Ihave a couple of questions but this is just 1.
what is the domain function ((1,1), (0,0), (2,-1))

Domain is the x values
(x,y)
pick the beginning numbres

(1,0,2) is answer

Answer to your question: a. the fundamental theorem of algebra tells you that the equation will have two complex roots since the degree of the polynomial is 2. the roots are ​ x=1±i7√2 .number of roots=degree of polynomialhere, degree of polynomial is 2 so number of roots will be 2.hope it *_*