MenuAboutAcademic TutoringTest PrepPricingTutor BiosTutoring JobsSign InINFO & PRICES WE’RE OPEN! CALL NOWHotmathMath Homework. Do It Faster, Learn It Better.HomeCubic FunctionsA cubic function is one in the form f(x)=ax3+bx2+cx+d .The "basic" cubic function, f(x)=x3 , is graphed below.y=x^3The function of the coefficient a in the general equation is to make the graph "wider" or "skinnier", or to reflect it (if negative):The constant d in the equation is the y -intercept of the graph.graphs of y=x^3, y=x^3-2, and y=x^3+3The effects of b and c on the graph are more complicated. However, if you can factor the right side of the equation, you can find one or more x -intercepts , and use these to sketch the graph. (Some cubics, however, cannot be factored.)graph of y=(x+3)(x+1)(x-2)A cubic function may have one, two or three x -intercepts, corresponding to the real roots of the related cubic equation.Subjects Near MeAdvertising TutorsVirginia Bar Exam Courses & ClassesNumerical Analysis TutorsERB CTP Courses & ClassesNevada Bar Exam Test PrepMac Computer Skills TutorsABPM - American Board of Preventive Medicine Test PrepLSAT Courses & ClassesSeries 51 Courses & ClassesOracle Certified Associate, Java SE 8 Programmer Test PrepCCNP - Cisco Certified Network Professional Courses & ClassesSAT Subject Tests Test PrepSAT Subject Test in Mathematics Level 1 Test PrepMCSE - Microsoft Certified Solutions Expert Courses & ClassesEnglish Grammar and Syntax TutorsPANRE - Physician Assistant National Recertifying Examination Courses & ClassesCall Of Duty: Black Ops II TutorsISEE Courses & ClassesAIS - Associate in Insurance Services Courses & ClassesCAIA Courses & ClassesPopular CitiesAlbany TutoringMiami TutoringLas Vegas TutoringSyracuse TutoringDenver TutoringPhoenix TutoringDetroit TutoringColumbus TutoringSan Diego TutoringDayton TutoringPopular SubjectsChemistry Tutors in San DiegoSpanish Tutors in AtlantaStatistics Tutors in San Francisco-Bay AreaReading Tutors in Washington DCAlgebra Tutors in SeattleGRE Tutors in PhoenixBiology Tutors in SeattleISEE Tutors in DenverSAT Tutors in MiamiGRE Tutors in MiamiDownload our free learning tools apps and test prep booksShow MoreVarsity Tutors © 2007 - 2021 All Rights Reserved×