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In this lesson we’ll be covering how to set-up piecewise defined functions based on story problems. Keep in mind that each piece of a piecewise defined function has its own domain, so we’ll also have to set-up an interval for each piece, just like the sample piecewise function given below:
piecewise_functions_word_problems - Free download as PDF File (.pdf) or read online for free.
Objective 2.02 Use piece-wise defined functions to model and solve problems; justify results. a) Solve using tables, graphs and algebraic properties. b) Interpret the constants, coefficients, and bases in context of the problem. Interval Notation: Parenthesis, brackets or a combination of both.
3.3 Piecewise Functions . 1. Use the piecewise function to evaluate the following. 𝑓(𝑥) = 3 𝑥−2, 𝑥< −3 2𝑥. 2. −3𝑥, −3 < 𝑥≤6 8, 1 𝑥> 6. 2. Graph the following piecewise function. 𝑓(𝑥) = − 1 3 𝑥−2, 𝑥≤0 2 𝑥+ 1, 𝑥> 0
On graphing piecewise functions To graph a piecewise function, it is a good idea to follow these steps. 1.Look at the inequalities rst. Draw a dotted vertical line for each of these values. 2.Marking lightly, graph all the functions which are given for f. 3.Looking back at the inequalities, darken in the functions between the vertical lines
What are the dependent and control variables? a. Write a piecewise function. b. c Graph the function.
A piecewise function is a function defi ned by two or more equations. Each “piece” of the function applies to a different part of its domain. An example is shown below. f(x) = { x − 2, 2x + 1, if x ≤ 0 if x > 0 The expression x − 2 represents the value of f when x is less than or equal to 0. The expression 2x + 1 represents the value ...
