Question: 23. The polynomial function k is given by k(x) = ax* - bx + 15, where a and b are nonzero real constants. Each of

23. The polynomial function k is given by k(x) = ax* - bx + 15, where a and b are nonzero real constants. Each of the zeros of k has multiplicity 1. In the xy-plane, an x- intercept of the graph of k is (17.997, 0). A zero of k is -0.478 - 0.80li. Which of the following statements must be true? (A) The graph of k has three x-intercepts. (B) -0.478 + 0.80li is a zero of k. (C) The equation k(x) = 0 has four real solutions. (D) The graph of k is tangent to the x-axis at x = 17.997

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