the graph of a sinusoidal function intersects its midline at (0,1) and then has a maximum point at (7pi/4,5). eerie the formula of the function, where x is entered in radians.

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 *_*