Limits at Infinity: Quiz

Problem 1

Let

f(x) = x2 + x

What is f(x+h)?

  1. x2 + 2xh + h2 + x + h
  2. x2+ x + h2 + h
  3. x2 + 2xh + h2 + 2x + 2h

Answers, problem 1

  1. f(x+h) = (x+h)2 + (x+h) = x2 + 2xh + h2 + x + h

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