## Precalculus: Functions and GraphsThis author-prepared manual provides solutions for all of the odd-numbered exercises in the text, strategies for solving additional exercises, and many helpful hints and warnings. |

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### Contents

Topics from Algebra | 1 |

Functions and Graphs | 35 |

Polynomial and Rational Functions | 93 |

Copyright | |

7 other sections not shown

### Common terms and phrases

angle approaches oo approximately Assume Pk axis circle coordinates corresponds cos0 cos2 cos2x cosine cost cosx Cramer's rule decreasing denominator denote the number directrix domain of g double-angle formula E2 yields ellipse endpoints equal equivalently Exercises Note factor Figure 19 Figure Figure 21 Figure 57 formula function graph Hence horizontal asymptote hyperbola hypotenuse law of cosines leading coefficient log2 log3 log4 maximum mi/hr multiply negative obtain one-to-one parabola Pk is true points of intersection polynomial positive proof is complete Pythagorean identity Pythagorean theorem quadratic quadratic formula radians radius real numbers Resulting sign shift sin0 sin2 sin2x sine sinx slope solution solve square Substituting synthetic division tan0 tan2 tangent theorem triangle trigonometric functions undefined unit circle units values vertex vertical asymptote vertically stretch x-axis x-int x-intercepts y-axis y-coordinate y-values zero