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Derivatives Test Q2 Dec 2021 SRS - Written part. Answer using techniques discussed in our class. Show your work or make clear your reasoning to earn marks. No marks are awarded if only a final answer is given. 1. Determine all points on the curve of f(x) where the slope of the tangent is equal to -2. 5 marks f(x): 2x+2 2. I(t) is a function that models the spread of a viral infection. / is the number of infections per 100,000 people, and (t) is time in weeks. What are the units of the derivative function? 1 mark I Thinking: Describe how you determined your answer. T 3. g'(x) = x3+2 Write a possible function for g(x). 1 mark 4. 1 mark. f (x) = xx What is lim f'(x)? X-+00 5. 1 mark