(10) Given f(x) = x2 _ 4x (18 points) a) Use an appropriate form of the definition (methods we have used in this class) of the I derivative to compute f (x). ANS b) Use the results of part (a) to nd the slope of the tangent line at x = 0, 2, and 3 slope at x= 0 slope at x=2 slope at x= 3 0)) Sketch a graph of f(x) and sketch the tangent line at x= 3. Based on your graph, Is your answer to part b reasonable? Explain below. EXPLAIN: d) Find the equation of the tangent line at x= 3. Tangent line at X: 1