21worksheet2 - SOL UT 0N5 Math 122 Section 021 Worksheet 2...

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Unformatted text preview: SOL UT) 0N5 Math 122, Section 021 Worksheet 2 Show all work for full credit. 1. A projectile is fired upward from the top of a cliff. Its height above the ground (in feet) after t seconds is given by s(t) = —161‘2 +1801 +100. Calculate the average velocity of the projectile from t = 2 to t = 7 . Give units. 3(7) —s/2> - 6% 6% g ‘ T ’ “5“” 2. In each of the following cases, determine the relative, or percent, change. a. A bicycle changes in price from $140 to $175. ’75“ W3 3, a 25 252, meme. MO M (“:03 b. A pair of jeans changes in price from $65 to $26. 3. A company that manufactures book bags can produce 43 bags for $2200 and 68 bags for $2600. The book bags sell for $52 each. Determine the company’s break-even point. Explain the significance of this point to the company. 605+: m: leffmaa Bomb:ch 5ZZ‘MagH5IZ ' 3 5% = 15/2 C '2200: w/f "/3) [El] & ' - i [ Wad/v] Z/Z 170016 bags +144 wt“ vent/6. 2‘ 522 have ox ‘0‘“te efi $0, 11% WW} Mum more than HZ [9036 it: Matt from, 4. The chart below gives the cost, C(q) , and the revenue, R(q) , associated with producing a quantity q of some good. rum-mum a. Find a formula for the cost function, C(q) . m: AS :: 1233’11'0'5 C 4110.50 : £759,503 A2 60—50 : / Z 75 b. Find a formula for the revenue function, R(q) . )2sz 7/2.5c>=,0/503 : ,‘7= I815 22 WE c. What is the variable cost per unit? , 35/275 d. What price is being charged for the item? e. How many units of the item do we have to sell to make a profit? How did you determine this? ' \r x“ W250 1/275 V'Wj 7k Com/w: mar: 5.5; r 4732 all lea-EA I; j 5 85” 4’ Emalmn to Make will. 5. The table below gives values of a function f (t). mm “~42: a. Does the function appear to be increasing or decreasing over the given interval? 7‘, b. Does the function appear to be concave up or concave down over the given interval? 510152025 ...
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This note was uploaded on 02/21/2012 for the course MATH 122 taught by Professor Kustin during the Spring '08 term at South Carolina.

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21worksheet2 - SOL UT 0N5 Math 122 Section 021 Worksheet 2...

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