Math123 HC 1 (Take Home, Due 1-27-2012) Name Wm
1. a) Assume s = f(t) = 212 + t gives the position (feet) of an object at time t (seconds). 1. /20
i) Find the average velocity for the object over the time interval [2, 4].
f(2+h) f(2)
ii) Find the
Math 123 HC 3 (Take Home, Due 2-23-2012) Name Ea
1. 21') (92/267) The cost, in dollars, of producing x units ofa certain commodity is 1. /2O
C(x) = 920 + 2x 0.02x2 + 0.00007x3 .
i) Find the marginal cost function. ii) Find C'(1 00) and explain its mean