Lesson 2.2 Polynomial Functions of Higher Degree
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Post on 17-Feb-2016
DESCRIPTIONLesson 2.2 Polynomial Functions of Higher Degree. Polynomial Characteristics Continuous graphs no holes or jumps Curves no vs. Y = x 3 : Cubic Function Odd Function Origin Symmetry Increasing on :. Leading Coefficient Test Function: Even : ends go in same direction - PowerPoint PPT Presentation
Lesson 2.2 Polynomial Functions of Higher DegreeLesson 2.2Polynomial Functions of Higher DegreePolynomial CharacteristicsContinuous graphs no holes or jumpsCurves no vsY = x3 : Cubic FunctionOdd FunctionOrigin SymmetryIncreasing on : Leading Coefficient TestFunction:Even: ends go in same directionOdd: ends go in opposite directionSign of first term determines how they startEven FunctionsOdd FunctionsExample:Discuss the end behavior of each function. Check each with your calculator.f(x) = -x3 + 4xf(x) = x4 - 9x2 +3x + 1f(x) = x5 3xPolynomial Zeros, Roots, Factors, X-interceptsFor a polynomial function f with degree n :has at most n real zeroshas at most n 1 relative maxima or minima (humps)x = a is a zero of the functionx = a is a solution when f(x) = 0(x a) is a factor of f(a, 0) is an x-interceptCalculator Zero Function2nd Calc Zero Left Bound Right Bound GuessUse table to find x-intercept (a, 0)Repeated ZerosA function with repeated factorsIf k is odd graph crosses x-axis at x = aIf k is even graph touches x-axis at x = a, does not crossIntermediate Value TheoremIf f is continuous on an interval [a, b], then f takes on every value in between a and b.Mainly used to test for zeros:If f(a) > 0 and f(b) < 0, then there must be a value where the function is 0.ExampleGraph and find the zeros ofGraph, find the zeros, find relative extrema (max & min)Find a polynomial with the zeros
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Polynomial Functions and Graphs. Higher Degree Polynomial Functions and Graphs a n is called the leading coefficient n is the degree of the polynomial.
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SFM Productions Presents: Another day of Pre-Calculus torture! No fun for you - tons of fon for me! 2.2 Polynomial Functions of Higher Degree.
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