## The below picture are few natural examples of parabolic shape which is represented by a quadratic polynomial. A parabolic arch is an arch in the shape of a parabola. In structures, their curve represents an efficient method of load, and so can be found in bridges and in architecture in a variety of forms.   ## In the standard form of quadratic polynomial, 𝑎𝑥 2 +𝑏𝑥+𝑐   a, b and c are (a) All are real numbers   (b) All are rational numbers.  (c) ‘a’ is a non zero real number and b and c are any real numbers  (d) All are integers ## If the roots of the quadratic polynomial are equal, where the discriminant 𝐷=𝑏 2 −4𝑎𝑐, then (a) D > 0  (b) D < 0   (c) D ≥ 0   (d) D = 0 ## If a and 1/a are the zeroes of the quadratic polynomial 2𝑥 2 − 𝑥 + 8𝑘 then k is (a) 4  (b) 1/4  (c) (-1)/4    (d) 2 ## The graph of 𝑥 2 +1=0 (a) Intersects x‐axis at two distinct points.   (b) Touches x‐axis at a point.   (c) Neither touches nor intersects x‐axis.   (d) Either touches or intersects x‐ axis. ## If the sum of the roots is –p and product of the roots is (-1)/p , then the quadratic polynomial is (a) 𝑘(−𝑝𝑥 2 +𝑥/𝑝+1)  (b) 𝑘(𝑝𝑥 2 −𝑥/𝑝−1)     (c) 𝑘(𝑥 2 +𝑝𝑥−1/𝑝)    (d) 𝑘(𝑥 2 −𝑝𝑥+1/𝑝)  1. Chapter 2 Class 10 Polynomials (Term 1)
2. Serial order wise
3. Case Based Questions (MCQ)

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