Math121Quiz2

# Math121Quiz2 - Math 121 Name: _ QUIZ #2 (SECTIONS 2.4, 2.5,...

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Math 121 Name: ________________________ QUIZ #2 (SECTIONS 2.4, 2.5, 2.6, 2.7) MATH 121 – FALL 2003 – KUNIYUKI 105 POINTS TOTAL, BUT 100 POINTS = 100% Show all work, simplify as appropriate, and use “good form and procedure” (as in class). Box in your final answers; write units where appropriate! No notes or books allowed. PART 1 (USE A SCIENTIFIC CALCULATOR!): 31 points 1) The position function of a particle in inches is given by st t t () =+ 54 3 , where t is time in seconds. Write units! (13 points total) a) What is the position of the particle at time t = 2 ? b) What is the velocity of the particle at time t = 2 ? c) What is the acceleration of the particle at time t = 2 ? TURN OVER THIS SHEET! MORE ON THE BACK!

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2) A computer company's cost function is Cx x () =+ 400 5000 in dollars, where x is the number of computers produced. (18 points total) a) Find the average cost function, AC x . b) Find lim x AC x Æ• . c) Find the marginal average cost function, MAC x . d) Evaluate MAC 40 and interpret your answer.
Math 121 Name: ________________________ QUIZ #2 (SECTIONS 2.4, 2.5, 2.6, 2.7) MATH 121 – FALL 2003 – KUNIYUKI

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## This note was uploaded on 09/08/2011 for the course MATH 121 taught by Professor Staff during the Spring '11 term at Mesa CC.

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Math121Quiz2 - Math 121 Name: _ QUIZ #2 (SECTIONS 2.4, 2.5,...

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