ADDING INTEGERS—NOTES
Relations & Functions—NOTESVocabularyRelation: Function: Domain: Range: Independent Variable: Dependent Variable: Function vs. Not a FunctionVertical line test: a graph is a function if it _______________ the vertical line testDraw a picture of a vertical lineTell if the following are functions or non-functions. 3888740114300609601549401)Function?2) Function?Why?Why?3888740139700231775482603) Function?4) Function? Why? Why? Are the following functions? Be able to explain why or why not. 5-810579-3Are the following functions or not functions? How do you know? Explain!x2592y1473{(2,1), (4,3), (5,4), (9,7)}Function NotationEquationFunction Notation y=4x f(x) = 4xThe number in the ( ) will tell you what to sub for x in the problem.ExamplesFind f(3) if f(x) = 5x. Find f(4) if f(x) = 8xFind f(4) if f(x) = 3x – 8Find 3f(-4) if fx=3x2-4xFind (f – h)(x) if fx=3x+5 and h=x3+4x-5Find (f + g)(x) if fx=-4x+5 and g=-6x-10Use the graphs below to answer the following questions. f(-2) = If f(x) = 2, then x = _______f(-5) = If f(x) = 1, then x = _______f(2) = If f(x) = 1, then x = _______f(0) = If f(x) = 2.5, then x = ______f(-4) = If f(x) = 1.4, then x = _______f(4) = If f(x) = 1.5, then x = _______3594105080473900510795 ................
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