mdm12Section2_2_OddSolutionsFinal

# mdm12Section2_2_OddSolutionsFinal - Q1-5 Q15-17 Q7-13...

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Q1-5 Q7-13 Q15-17 CHAPTER 2 Section 2.2, pp. 109–112 Solutions to Odd Number Problems 1. Answers may vary. a) 111.5 – 100 = 11.5 b) 11.5 100% 11.5% 100 ×= c) i) 108.5 100 7.50 1 \$8.14 100 ⎛⎞ += ⎜⎟ ⎝⎠ ii) 114.2 107.9 55 1 \$58.21 107.9 3. a) The TSE 300 Composite Index® reached 5000 in 1996, five times the base value of 1000 in 1971. b) In 1971, the TSE 300 Composite Index® was 1000, and in 1977 it was again 1000. The growth rate was zero. c) The steepest part of the graph occurs from 1999–2001, indicating the most rapid growth. d) A straight line is not a useful model for the TSE 300 Index. The growth is not linear. 5. a) The scale on the vertical axis; the period of time over which the graph ranges; and the scale on the horizontal axis all differ from the CPI graph on page 104. b) The graph evens out smaller fluctuations. It is easier to see long-term trends. A period of time over which the index has doubled is shown. c) Detailed month-by-month variations are not exhibited. Year-by-year growth rates are not easily calculated.

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mdm12Section2_2_OddSolutionsFinal - Q1-5 Q15-17 Q7-13...

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