Which of the following conditions on the discriminant ensures that the parabola…

MATHEMATICS · Single correct · CBSE · Mathematics · Quadratic Equations · Quadratic Equations

Problem

Which of the following conditions on the discriminant DD ensures that the parabola represented by y=ax2+bx+cy=ax^2+bx+c touches the xx-axis at exactly one point? (a) D>0D>0 (b) D=0D=0 (c) D≥0D\ge 0 (d) D<0D<0

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