A)
B)
C)
D)
Correct Answer: D
Solution :
For any quadratic polynomial\[a{{x}^{2}}+bx+c\], \[a\ne 0\], the graph of the corresponding equation \[y=a{{x}^{2}}+bx+c\]has one of the two shapes either open upwards like \[\cup \] or open downwards like \[\cap \] depending on whether a > 0 or a < 0. These curves are called parabolas. So, option [d] cannot be possible. Also, the curve of a quadratic polynomial crosses the X-axis on at most two points but in option [d] the curve crosses the X-axis on the three points, so it does not represent the quadratic polynomial
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