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The typical rational function has the form p(x)/q(x) where p and q are polynomials. p(x) is called the numerator and q(x) is called the denominator. Example: In the rational function. which simplifies to simplifies to (x+2)/(x-3), but the x = 2 is NOT in the domain of g(x) whereas it IS in the domain of (x+2)/(x-3).
understand exponential functions and how they work. Exponential functions are function where the variable x is in the exponent . Some examples of exponential functions are f(x) = 2 x , f(x) = 5 x â 2 , or f(x) = 9 2x + 1 . In each of the three examples the variable x is in the exponent, which makes each of the examples exponential functions. To begin graphing exponential functions we will start with two examples. exponential functions by making a table of values and plotting the points. examples we will take a look at the s imilarities and differences between the two graphs.