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A rational function is any function which can be defined by a rational fraction, i.e. an algebraic fraction such that both the numerator and the denominator are polynomials.

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A rational function is any function which can be defined by a rational fraction, i.e. an algebraic fraction such that both the numerator and the denominator are polynomials.

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An exponential function of the form f(x)=ab^x is an exponential growth function when 0<b<1

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An exponential function of the form f(x)= ab^x is an exponential growth function when b>1

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A function written as f(x)=|x|, in which f(x) is greater than or equal to 0 for all values of x

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A equation of the form
y= -ax^2+ (Sometimes) bx+c, Where "a" cannot equal zero

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A nonlinear system of equations is a set of simultaneous equations in which the unknowns (or the unknown functions in the equations) appear as variables of a polynomial of degree higher than one or in the argument of a function which is not a polynomial of degree one.

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What is a function? (video) | Functions | Khan Academy

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Functions assign a single output for each of their inputs. In this video, we see examples of various kinds of functions.

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An equation of the form y= ax^2 +(Sometimes) bx + c, where "a" cannot equal 0

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A function written as f(x) = |x|, in which f(x) is greater than or equal to 0 for all values of x

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An equation in the form Ax+By=C, with a graph that is a straight line