A)
B)
C)
D)
Correct Answer: D
Solution :
| [d] 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 or open downwards like 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 at most two points but in option [d], the curve crosses the X-axis at the three points, so it does not represent the quadratic polynomial. |
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