The factored form of a quadratic function is y 5 22(x 2 (3
Chapter 8, Problem 8.4.20(choose chapter or problem)
The factored form of a quadratic function is y 5 22(x 2 (3 1 i))(x 2 (3 2 i)). Answer the following. a. Will the graph open up or down? Explain. b. What are the zeros of the quadratic function? c. Does the graph cross the x-axis? Explain. d. Write the quadratic in standard form. (Hint: Multiply out; see Exercise 18.) e. Verify your answer in part (b) by using the quadratic formula and your answer for part (d).
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