Difference between revisions of "2003 AMC 12A Problems/Problem 25"
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− | Let <math> f(x) = sqrt{ ax^2 + bx } </math> | + | Let <math> f(x)=</math> <math> \sqrt{ax^2+bx} </math> |
+ | For how many real values of <math>a</math> is there at least one positive value of <math> b </math> for which the domain of <math>f </math> and the range <math> f </math> are the same set? | ||
(A)0 (B) 1 (C) 2 (D) 3 (E) infinitely many | (A)0 (B) 1 (C) 2 (D) 3 (E) infinitely many |
Revision as of 10:49, 28 November 2006
Let For how many real values of is there at least one positive value of for which the domain of and the range are the same set?
(A)0 (B) 1 (C) 2 (D) 3 (E) infinitely many