The graph of is a parabola. Its real zeroes are the -coordinates of the points where the parabola meets the -axis. A quadratic can cross the -axis in 2 points (2 real zeroes), touch it (equal zeroes) or not meet it (no real zeroes).
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Class 10 · Mathematics (Standard) · Unit 2: Polynomials
Geometrical Meaning of Zeroes
Lesson 2 of 6