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Warm-Up: February 13, 2012. 7-7 Skills Practice Answers.

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Presentation on theme: "Warm-Up: February 13, 2012. 7-7 Skills Practice Answers."— Presentation transcript:

1 Warm-Up: February 13, 2012

2 7-7 Skills Practice Answers

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5 7-7 Practice Answers

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9 Homework Questions?

10 SQUARE ROOT FUNCTIONS AND INEQUALITIES Section 7-9

11 Square Root Functions  A square root function is a function that contains a variable inside a square root.  The inverse of a quadratic function is a square root function only if the range is restricted to nonnegative numbers.

12 Graphing Square Root Functions 1. Set the radicand ≥ 0, and solve for x. This is the domain. 2. Set up a T-table that starts with the x-value you found in step Plot the points from the T-table and connect the dots.

13 Example 1  Graph the function. State the domain and range.

14 You-Try #1  Graph the function. State the domain and range.

15 Assignment  Page 398 #15, 21, 25  Graph each function. State the domain and range of each function.

16 Chapter 7 Test  Thursday  20 questions  You will be allowed to use calculators and a 3”x5” index card (both sides).  There will not be time to review Thursday before the test.


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