c: corr. s =, suppl., = 43 m8 9-23. See graph at right. See graph at right. The data shows a negative association. 9-24. 9-25. a: 270 sq. ft. b: 30 sq. yds. 9-26. a: b: Lesson 9.1.3 is parallel to alt int. = is parallel to corr. = 9-33. a: s b: s c d, e f, c: None d: is parallel to vert s =, then corr. s = c d, e: is parallel to suppl. same side int. s = c d, 9-34. a: = 22.5˚, st.  x b: = 49˚, st s, = 41˚, or ext.  d e ∆180˚ c: = 43˚, ext. f  9-35. a: b: c: d: 9-36. a: = 7 b: = c: = 2 d: = 4 x x x x –2 $50.40 $50.68 9-37. a: b: 9-38. a: See table and graph below. b: See the for is on the graph; in table yvalue between 10 and 11 weeks. The entries in the table grow by a constant amount ($150 each c: week) and the graph of the values makes a straight line. Lesson 9.1.4 7.7 9-45. a: b: c: 9-46. Sample graphs:
c: corr. s =, suppl., m8 = 43 9-23. See graph at right. 9-24. See graph at right. The data shows a negative association. 9-25. a: 270 sq. ft. b: 30 sq. yds. 9-26. a: b: Lesson 9.1.3 9-33. a: c is parallel to d, alt int. s = b: e is parallel to f, corr. s = c: None d: c is parallel to d, vert s =, then corr. s = e: c is parallel to d, suppl. same side int. s = 9-34. a: x = 22.5˚, st.  b: d = 49˚, st s, e = 41˚, ∆180˚ or ext.  c: f = 43˚, ext.  9-35. a: b: c: d: 9-36. a: x = 7 b: x = –2 c: x = 2 d: x = 4 9-37. a: $50.40 b: $50.68 9-38. a: See table and graph below. b: See the yvalue for is on the graph; in table between 10 and 11 weeks. c: The entries in the table grow by a constant amount ($150 each week) and the graph of the values makes a straight line. Lesson 9.1.4 9-45. a: b: 7.7 c: 9-46. Sample graphs:
cc3-selected-answers-ch-9.docx