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Section 4.2 Operations with Functions

Section 4.2 Operations with Functions. Objectives: 1. To add, subtract, multiply, and divide functions. 2. To find the composition of functions. EXAMPLE 1 Let f(x) = x 2 – 9 and g(x) = x + 3. Find (f + g)(x), (f – g)(x), fg(x), and f / g (x). (f +g)(x) = f(x) + g(x)

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4.6 Formalizing Relations and Functions:

Relation: the pairing of numbers in one set mainly the domain with exactly one number of the range represented by ordered pairs (x, y). 4.6 Formalizing Relations and Functions:. Domain: The x value of the ordered pair ( x , y).

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Inverse functions

Inverse functions. Information. What is a function?. What is a function?. A function is a combination of one or more operations that convert an input into an output. function. input. output. + 2. + 2. 5.

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