The way that I facilitate this investigation depends on how students engage with the Warm-up. We have to start at 0, since dogs have to weigh over 0 pounds: Therefore, the piecewise function is: Here are the graphs, with explanations on how to derive their piecewise equations: You might want to review Quadratic Inequalities for the second example below: So, the piecewise function is: You plan to sell She Love Math t-shirts as a fundraiser.

Piecewise Function Word Problems Problem: We learned how about Parent Functions and their Transformations here in the Parent Graphs and Transformations section. The questions also show different transformations of the function. Note that this piecewise equation is non-continuous. Put in numbers and try it!

Obtaining Equations from Piecewise Function Graphs You may be asked to write a piecewise function, given a graph. I will use this information to decide which resource to use in the investigation. The piecewise function is: Welcome to She Loves Math! Write a function that models this situation.

To review how to obtain equations from linear graphs, see Obtaining the Equations of a Line, and from quadratics, see Finding a Quadratic Equation from Points or a Graph. Learn these rules, and practice, practice, practice!

Graphing Absolute Value Functions Example. You may also be asked to take an absolute value graph and write it as a piecewise function: What is another option? This means we can write this absolute value function as a piecewise function.For students who don’t need to practice graphing the functions, they can start formulating a generalization about how to write a piecewise function directly from an absolute value function (see Absolute Value Piecewise Function Generalization).

Chapter 4 Writing Linear Functions Graphing and Writing Step Functions A step function is a piecewise function defi ned by a constant value over each part of its domain. The graph of a step function consists of a series of line segments. x y 0 2 4 6 8 10 12 0 2 4. ABSOLUTE VALUE AND PIECEWISE FUNCTIONS In order to remove the absolute value sign from a function you must: 1.

Find the zeroes of the expression inside of the absolute value.

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For the positive side, drop absolute value and simplify. For the negative side, switch the signs of the argument & simplify. Negative Positive 5(-3 + x) 5(3 – x) 5x – 15 -5x + 15 The simplified negative equation is for x ≥ 3 while the Writing Absolute Value as Piecewise Author: Belton ISD Created Date.

Algebra I Absolute value & piecewise functions. Piecewise functions. Introduction to piecewise functions. Worked example: graphing piecewise functions.

Practice: Piecewise functions graphs. Worked example: domain & range of step function. Worked example: domain & .

DownloadWriting and graphing piecewise functions absolute

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