Question

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

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

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