1-2 Composition of Functions

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Presentation transcript:

1-2 Composition of Functions Pre Calc A

Ex 17: Given f(x)=2x – 1 and g(x)=x² find each function: A. (f + g)(x) B. (f – g)(x) C. (f · g)(x) D. ( )(x)

Ex : For the Lotsa Coffee Shop, the revenue r(x) in dollars from selling x cups of coffee is r(x) = 1.5x. The cost c(x) for making and selling the coffee is c(x)= .2x + 110. A. Write the profit equation P(x) B. Find the profit for 100, 200, and 500 cups of coffee sold.

Composition

Ex : Find and for f(x) = x² + 2 and g(x) = 3x

Ex last one: Find the first three iterates x1, x2, and x3, of the function f(x) = 3x + 2 for an initial value of x0 = 4