Geometrical Meaning of the Zeroes of a Polynomial

IMPORTANT

Geometrical Meaning of the Zeroes of a Polynomial: Overview

This topic covers concepts, such as, Geometrical Meaning of the Zeros of a Quadratic Polynomial, Graph of a Linear Polynomial,Graph of a Quadratic Polynomial and Graph of a Quadratic Polynomial Touching the x-axis etc.

Important Questions on Geometrical Meaning of the Zeroes of a Polynomial

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The graph of a polynomial px= ax2+bx+c is given as:

Question Image

If α and β are its zeroes, then find the value of α and β

 

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Draw the graph of the quadratic polynomial fx=x2-4x+3 and observe:

 It's number of zeros

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Draw the graph of the quadratic polynomial fx=x2-4x+3 and observe:

The shape of the curve when the coefficient of x2 is negative,

 

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Draw the graph of the quadratic polynomial fx=x2-4x+3 and observe:

The shape of the curve when the coefficient of x2 is positive,

 

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Draw the graph of 3x2-x-4 and find the zeroes.

HARD
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Draw the graph of following polynomial:

-4x2+4x-1.

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Draw the graph of x2+x-12=0 and state the nature of their solution.

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Draw the graph of p(x)=x2+5x+6

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Draw the graph of the polynomial fx=2x2-4x+5.

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If the graph of a quadratic polynomial lies entirely below x-axis, then both the roots are not real.

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Identify the graph of a fourth degree polynomial

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If the graph of a quadratic polynomial lies entirely below x-axis, then 

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In the above figure, the graph of a polynomial p(x) is shown. The number of zeroes of p(x) is:

83252

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Let f(x)=x3. The graph of the polynomial is shown in the figure. Find the number of zeros of polynomial f(x).

227527

 

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If the graph of a polynomial intersects the x-axis at only one point, it cannot be a quadratic polynomial.

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If the graph of a polynomial intersects the x-axis at exactly two points, it need not be a quadratic polynomial

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The graph of the quadratic polynomial ax2+bx+c intersect x-axis such that c=b24a, then the quadratic polynomial has

Dealing with tangents to a parabola - CetKing

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If a > 0, then the graph of the quadratic polynomial will be an _____opening parabola.

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The point where the graph of the equation x22x8=0 intersects X-axis are (x,0) and (2,0), then the value of x ?

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If p(x) = 4x + 5, then the root of px is