GregByrd,LynnByrdandChrisPearceCoursebookCambridgeCheckpointMathematics7UniversityPrintingHouse,CambridgeCB28BS,UnitedKingdomCambridgeUniversityPressispartoftheUniversityofCambridge
ItfurtherstheUniversity’smissionbydisseminatingknowledgeinthepursuitofeducation,learningandresearchatthehighestinternationallevelsofexcellence
cambridge
orgInformationonthistitle:www
cambridge
org/9781107641112©CambridgeUniversityPress2012Thispublicationisincopyright
Subjecttostatutoryexceptionandtotheprovisionsofrelevantcollectivelicensingagreements,noreproductionofanypartmaytakeplacewithoutthewrittenpermissionofCambridgeUniversityPress
Firstpublished2012PrintedinbyAcataloguerecordforthispublicationisavailablefromtheBritishLibraryISBN978-1-107-64111-2PaperbackCambridgeUniversityPresshasnoresponsibilityfort