Is two distinct lines with same x intercept parallel?

No. In order to be parallel, two lines would have to have the same slope, and
different intercepts. Why? Two lines with different slopes, but the same
intercepts would result in two intersecting lines. Two lines with the same slope, and different intercepts would be parallel.

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 *_*