If (x) = 2x 2 + x + k is the equation of a quadratic function with

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If (x) = 2x² + x + k is the equation of a quadratic function with a graph that passes through the x-axis when x = 3. What is the value of k?

A. 21

B. 18

C. −21

D. −18

E. −3

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C The graph crosses the x axis at x 3 ...View the full answer

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