Algebra 2 and Trigonometry

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AMSCO SCHOOL PUBLICATIONS, HUDSON STREET, NEW YORK, 10013ALGEBRA 2andTRIGONOMETRYAMSCO SAnn Xavier 8/12/08 1:46 PM Page iDedicationTo Jessica Alexander and Uriel Avalos in gratitude for their invaluable work in preparing this text Xavier GantertThe author has been associated with mathematics education in New York State as a teacher and anauthor throughout the many changes of the past fifty years. She has worked as a consultant to theMathematics Bureau of the Department of Education in the development and writing of SequentialMathematics and has been a coauthor of Amsco s Integrated Mathematics series, which accompanied thatcourse of :Richard AuclairMathematics TeacherLa Salle SchoolAlbany, NYDomenic D OrazioMathematics TeacherMidwood High SchoolBrooklyn, NYSteven J.

Statistics includes the use of the graphing calculator to reexamine range, quar-tiles, and interquartile range, to introduce measures of dispersion such as variance and standard deviation, and to determine the curve that best represents a set of bivariate data. iii PREFACE 14411FM.pgs 8/12/08 1:46 PM Page iii

  Reduction, Graphing, To introduce, The graphing