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A curve is represented by y=ax^2+2bx+c. How many real roots [#permalink]
22 Jul 2008, 05:19
A curve is represented by y=ax^2+2bx+c. How many real roots does the equation ax^2+2bx+c=0 have? (1) a < 0 (2) b^2 > c A. Statement (1) ALONE is sufficient but Statement (2) ALONE is not sufficient. B. Statement (2) ALONE is sufficient but Statement (1) ALONE is not sufficient. C. BOTH Statements TOGETHER are sufficient, but NEITHER Statement alone is sufficient. D. Each Statement ALONE is sufficient. E. Statements (1) and (2) TOGETHER are NOT sufficient.