InterviewSolution
Saved Bookmarks
| 1. |
The graph of the polynomial 4x^2-8x+3 cuts the x-axis at ________ and ________ points.(a) (\(\frac {3}{4}\), 0), (\(\frac {1}{2}\), 0)(b) (\(\frac {3}{2}\), 0), (\(\frac {1}{2}\), 0)(c) (\(\frac {3}{2}\), 0), (\(\frac {1}{6}\), 0)(d) (\(\frac {7}{2}\), 0), (\(\frac {3}{2}\), 0)I got this question in exam.My question is taken from Geometrical Meaning of Zeros of Polynomial in division Polynomials of Mathematics – Class 10 |
|
Answer» RIGHT answer is (B) (\(\frac {3}{2}\), 0), (\(\frac {1}{2}\), 0) Easy explanation: The graph of the polynomial CUTS the x-axis. Only the zeros of the polynomial cut the x-axis. 4x^2-8x+3=0 4x^2-6x-2x+3=0 2x(2x-3)-1(2x-3)=0 (2x-3)(2x-1)=0 x=\(\frac {3}{2}, \frac {1}{2}\) Hence, the graph of the polynomial cuts the x-axis at (\(\frac {3}{2}\), 0) and (\(\frac {1}{2}\), 0). |
|