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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. 1) In the standard form of quadratic polynomial, ax² + 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. 2) If ∝ and 1/∝ are the zeroes of the quadratic polynomial 2x² - x + 8k, then k is (a) 4 (b) 1/4 (c) -1/4 (d) 2 3) The graph of x² + 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. 4) If the sum of the roots is –p and product of the roots is -1/p, then the quadratic polynomial is (a) k (- px² + x/p + 1) (b) k (px² - x/p - 1) (c) k (x² + px - 1/p) (d) k (x² - px + 1/p)
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Asked by susrisangita792 | 07 May, 2023, 08:41: AM
answered-by-expert Expert Answer
In the standard form of quadratic polynomial, ax² + 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.
 
Option (c) is correct answer.
 
Please post one query at a time.
Answered by Rashmi Khot | 08 May, 2023, 11:15: AM

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