Multiple choice:)

Use h(x) = x4 - 15x2 + 38x - 60 to answer questions 73-77. 73. How many zeros (real and imaginary) should this polynomial function have? A. 2 B. 3 C. 4 D. 5 74. At most, how many relative extrema can a fourth degree polynomial have? A. 2 B. 3 C. 4 D. 5 75. What is the end behavior of the graph of the function? A. The end behavior of the graph is as x - -co, then f (x) - co and as x - co, then f (x) - co. B. The end behavior of the graph is as x - -co, then f (x) - co and as x - co, then f (x) - -co. C. The end behavior of the graph is as x - -co, then f (x) - -co and as x - co, then f (x) - co. D. The end behavior of the graph is as x - -co, then f (x) - -co and as x - co, then f(x) - -co. 76. Using the Rational Zero (Root) Theorem, what are the possible rational zeros of the polynomial function? A. -1, -2, -3, -4,-5,-6,-10, -12,-15,-20,-30,-60 B. 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60 C. +1, +2, +3, +4, 15, 16, +10, +12, +15, +20, +30, +60 D. +1, +3, +5, +15 77. What are all the zeros of the polynomial function (real and imaginary)? A. x = {-3, 5, 1+iv12} C. x = {-3, 5, 1+iv3} B. x = {-5, 3, 1+iv12} D. x = {-5, 3, 1+iv3}