## College Algebra |

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axis of symmetry centimeters circle coefficients common logarithms complex numbers curve defined definition denominator difference quotient directrix distance ellipse equal Evaluate EXAMPLE Exercise exponential exponents expression factor foci formula fraction geometric geometric sequence graph horizontal asymptote hyperbola Illustrations inches inequality intersect interval inverse length linear equation logarithms mathematical induction matrix miles per hour Multiply notation Note number line obtained one-to-one one-to-one function parabola perpendicular point-slope form polynomial positive numbers pounds preceding quadratic quadratic function quotient radical radius rational function rational number real numbers rectangle result Rule scientific notation Section sequence side Simplify slope slope-intercept form solution set square standard form subtraction synthetic division TEST YOUR UNDERSTANDING Think Carefully Answers tion triangle trinomial UNDERSTANDING Think Carefully units variable vertex vertical asymptote Write the equation x-axis y-axis y-intercept y-value zero