GRE
Exam
Programming
Functions
Let f be a real function defined by f(x) = ax^2+b. Which of the following is true if f(1) = 2 and f(2) = 5? Indicate all correct options. [x^2=x*x]
A. a = 2
B. b = -1
C. a = b
D. b = 1
E. a < b
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