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If the graph of a polynomial cuts the x-axis at 3 points, then the polynomial is ______

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in Mathematics - Class 10 by (506k points)
If the graph of a polynomial cuts the x-axis at 3 points, then the polynomial is ______

(a) Linear

(b) Quadratic

(c) Cubic

(d) Biquadratic

The question was asked during an interview.

The origin of the question is Geometrical Meaning of Zeros of Polynomial in division Polynomials of Mathematics – Class 10

1 Answer

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Best answer
Right choice is (c) Cubic

Easiest explanation: Since, the graph of the polynomial cuts the x-axis at 3 points, hence, it will be a cubic polynomial.  A polynomial is said to be linear, quadratic, cubic or biquadratic according to the degree of the polynomial.

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