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# Math_270_Test_2_Study_Guide_Answers - 2 graph has a sharp...

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| a | a | a Math 270 Test 2 Study Guide I. Word problems 1. 3 2 0 9 0 2 9 2 = - - = AROC murders per day. This tells me that on average, the serial killer murdered 2 people every 3 days during his first nine days. 2. a) 4 weeks after the flea medicine wears off, there are about 300 fleas on the dog. b) 376 4 001 . 4 ) 4 ( ) 001 . 4 ( ) 4 ( ' - - f f f fleas per week. During the fourth week, approximately 376 fleas join the population. II. ) ( ' A f the slope at B zero the AROC from C to E the IROC at D III. 1. ) ( ' x f - and ) ( ' ' x f + 2. ) ( ' x f + and ) ( ' ' x f - 3. ) ( ' x f + and ) ( ' ' x f - 4. ) ( ' x f - and ) ( ' ' x f - 5. ) ( ' x f + and ) ( ' ' x f + 6. ) ( ' x f - and ) ( ' ' x f + 7. a) ) ( ' x f + and ) ( ' ' x f + b) ) ( ' x f - and ) ( ' ' x f + IV. These are too hard to draw in word, so I’ll do these in class. V. 1. f(x)
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Unformatted text preview: 2. graph has a sharp corner 3. vertical tangent line VI. 1. x x f / 1 ) ( = , a = 9 2. 2 ) (-= x x f , a = 8 81 1 9 81 1 lim ) 9 ( 9 1 lim 1 ) 9 ( 9 lim ) 9 ( 9 ) 9 ( 9 lim 9 1 9 1 lim ) 9 ( ) 9 ( lim-= +-→ = +-→ = +-→ = + +-→ =-+ → =-+ → h h h h h h h h h h h h h h h h f h f h 256 1 64 1024 4096 16 lim ) 8 ( 64 16 lim 1 ) 8 ( 64 16 lim ) 8 ( 64 ) 16 64 ( 64 lim 64 1 ) 8 ( 1 lim ) 8 ( ) 8 ( lim 2 2 2 2 2 2 2-= + +--→ = +--→ = +--→ = + + +-→ =-+ → =-+ → h h h h h h h h h h h h h h h h h h h h h f h f h...
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