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Introduction to Functions

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❶A function is a set of mathematical operations performed on one or more inputs variables that results in an output.

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A function of the type y=f(x)=k where k is a fixed real number.. The graph of the constant function is a straight line parallel to x axis, which is above or below according to k is positive or negative. Math homework help. Hotmath explains math textbook homework problems with step-by-step math answers for algebra, geometry, and calculus. Online tutoring available for math help.

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Need math homework help? Select your textbook and enter the page you are working on and we will give you the exact lesson you need to finish your math homework! Introduction to Functions What is a function? A function is a set of mathematical operations performed on one or more inputs (variables) that results in an output.