QUESTION 5 Below is the graph of a velocity function v(t). If the initial position is s(0) = 300m, find the position after 40 minutes. velocity (m/min) 80 60 40 20 time (min) - 20 - 40 10 20 30 40 50 1050 O 950 850 1150QUESTION 6 Find the derivative of the function given below assuming that a is a positive constant. f(x) = 2x+ a Of ' ( x ) = 2ax + zy Of ' ( x ) = 2axa-1_2a 3 X Of' ( x ) = 202 x 0- 1 20 x 3 Of' ( x ) = 2ax - 2a X QUESTION 7 If time, t, is in hours and concentration, C, is in ng/ml, the drug concentration curve of a drug is given by C(t) = 10teWhen does the drug concentration curve have an inflection point? At 2.5 hours At 8 hours At 10 hours O At 5 hours