Questions asked by Emilia M.

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• Given f(x)=3x^2-7x+2, determine f(x+h)-f(x)?
  
• Determine the value of "a" so that the following limit exists? Lim (3x^2+ax+a+3)/x^2+x+2 x->-2
  
• Suppose f(x) is even function. if f(x) is continous at a, show f(x) continuous at -a ?
  
• Let f be a function that is positive and differentiable for all x. Function has 2 properties: 1) f(a+b)=f(a)+f(b)/f(-a)+f(-b), for all a,b Є R 2)f'(0)=-1 Part 1: Find the value of f(0) Part 2: show that f(-x)=1/f(x) ?