Which of the following is/are not graph of a quadratic polynomial? (a) (b) A (c) (d)

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( (a, b, c) ) (a) since, the graph meets the x-axis in two distinct points A, B. ( therefore ) it is graph of a quadratic. (b) since, the graph meets the ( x ) -axis in two distinct points A, B. ( therefore ) it is graph of a quadratic. (c) since, the graph meets the ( x ) -axis at the points ( A, B ) (distinct points) ( therefore ) it is graph of a quadratic (d) since, the graph meets the ( x ) -axis at a single point ( therefore ) it is not graph of quadratic.

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