Use Descartes' Rule of Signs to determine the possible number of positive and negative real zeros for the function. Then, use a graph to determine the actual number of positive and negative real zeros.P(x) = 4x5 - 3x4 + 8x3 - 3

Question

A. possible: 0, 2, or 4 pos, 1 neg
actual: 0 pos, 1 neg

B. possible: 0 or 2 pos, 1 or 3 neg
actual: 0 pos, 1 neg

C. possible: 0 pos, 1 or 3 neg
actual: 0 pos, 1 neg

D. possible: 1 or 3 pos, 0 neg
actual: 1 pos, 0 neg

Answer 1

Answer: D