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Mathematics 7 Online
OpenStudy (anonymous):

Without drawing the graph of the equation, determine how many points the parabola has in common with the x-axis and whether its vertex lies above, on, or below the x-axis. y = –2x^2 + x + 3 A. 1 point in common; vertex on x-axis B. 2 points in common; vertex below x-axis C. 2 points in common; vertex above x-axis D. no points in common; vertex below x-axis

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