The graph of a rational function has a local maxima at (-1,0) and (8,0). The complex number 2+3i Is a zero of the function. What is the least possible degree of the function
Answer is 6
But i need help with an explanation.
1 answer
Since the maxima are on the x-axis, they must be roots of even multiplicity. There must be a conjugate root as well, so that makes at least 6 roots.
1 answer