Math 1 Changes for 2007-2008

01#01 inserted "about".
05#09 changed wording slightly.
08#01 is new; previous #01, #02 moved to page 13.
07#05 removed extra "and".
07#11 used to be the second half of #10.
13#07 and 13#08 were formerly 08#01 and 08#02.
17#06 modified to match the preceding question.
20#09 revised inequality.
27#11 a new word chain.
30#08 inserted trademark symbol, to ward off legal proceedings.
36#03 dated the postage rate info.
36#06 changed first graph; now only (b) and (d) are correct.
36#08 inserted italics.
45#06 modified the population data.
52#05 replaced "Find" by "Calculate".
54#11 new problem, to generalize result in 52#08.
55#05 rewrote part (c).
57#02 added "each" twice to part (b).
59#02 reworded the final question.
60#01 improved the rational approximation to sqrt2.
61#01 removed extra "?".
61#02 reworded slightly.
61#03 enlarged the table.
62#02 re-populated the table.
67#03 added a calculator exclusion, and inserted missing parentheses in part c.
67#04 converted "1:12" to "1.2 hours" in the preamble.
70#01 added a calculator exclusion.
74#05 changed part (b), so that vertex is not of form (x,x+c) in both examples.
81#01 now asks for throwing time in seconds.
81#09 now asks for justification.
83#12 changed 24 to 25, and added part (d).


fixed answers to 6#03b, 22#09, 34#10, 35#07, 47#05, 85#03.
in reference section,
  restored missing bracket for "slope";
  fixed page number for "Pythagorean theorem".