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Unformatted text preview: f= 7 ) ( . Find ) 1 2 ( +x f and then its yintercept. Section 1.1 – Definition of a Function 3 Piecewise Defined Functions Definition: A function that is defined by two (or more) equations over a specified domain is called a piecewise function. Example 3: Suppose ≥ < <≤= 8 , 8 2 , 5 2 , 3 ) ( 2 x x x x x x f . Find: a. f(10) b. f(15) c. yintercept Average Rate of Change h x f h x f x h x x f h x f x y ) ( ) ( ) ( ) ( ) ( in x change y in change+ =++ = ∆ ∆ = This is the Difference Quotient and it will be used in Calculus. Example 4: Calculate the Difference Quotient of 1 1 ) ( + = x x f . Section 1.1 – Definition of a Function 4 Example 5: Calculate the Difference Quotient of x x x f= 2 ) (...
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