GMAT 考满分题库

Known that -1 and 3 are the two roots of f (x) = ax ^ 2-bx + c, Is f(1)>0?
(1)f(0)=2
(2)f(-3)>f(-4)
  • AStatement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
  • BStatement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
  • CBoth statements TOGETHER are sufficient, but NEITHER one ALONE is sufficient.
  • DEACH statement ALONE is sufficient.
  • EStatements (1) and (2) TOGETHER are NOT sufficient.
显示答案
正确答案: D

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