In a predatory/prey model, the population of a predator is modeled by the function y=900cos(2π3x+8000y=900cos(2π3x+800 0

where x is measured in years. After how many years will the population reach 7,100?

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 *_*

Y= - 4x +3if you test it with any of the x values for example x=2: -4(2)+3 = - 8 + 3 = - 5you get the matching ^^^ y value