3.Ifhaveeqnin1variable,solveit,otherwiseloopbackto1Ībove. SolveSystemsofEquationsbySubstitution 1.Solve1eqnfor1variableintermsofothers. §12.1SysofLinearEqns Substitution/Elimination w=a1a2+b1b2Īnglebetween2Vectors cos = t∙vwtwwvw DecomposeaVectorintoOrthogonalVectors Vectorprojectionofonto vx = t∙ywywz y Draw&withsameinitialpt vz = v − vx Fromterminalptofdrop┴to Thiscreatesrttrianglewithashypotenuse.§10.1PolarCoordinates ConvertPolartoRectangularCoordinates |A|1stretchA1shrinkω sin Heron’sFormula A = # " data-type="undefined" target="_blank"> + + +'A − +'A − F−' E+ '2G+⁄ cos I5J − 3 K元 EM Graphingy=Asin(ωx)&y=Acos(ωx) |A|=amplitude(stretch/shrinkvertically) yintercepts: f(0)įindingHorizontal/ObliqueAsymptotesofR wheredegreeofnumer.=nanddegreeofdenom.=m SPSU Math 1113: Precalculus Cheat Sheet §5.1PolynomialFunctionsandModels(review) StepstoAnalyzeGraphofPolynomial 1.
