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FIRE UP!! Welcome BACK! TUESDAY 1.Turn in your signed syllabus to the front basket. 2.Pick up a Unit 1 Parent Function Graph Packet

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Discuss with your neighbor reasons you should learn math!

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Fortune 500 Companies We can teach our employees the technical parts of the job, but they need to know how to ask the right questions!! We are looking for people that are reliable and can problem solve!!!

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4 Parent Functions Students should be able to graph and state the characteristics for the following 8 parent functions – Constant – Identity/Linear – Quadratic – Cubic – Absolute Value – Square Root – Reciprocal – Greatest Integer

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Parent Function Overview Unit 1 will be focusing on 8 parent functions. You learned many of these in Algebra-2, but we will explore more characteristics! Let’s see what you recall from Alg-2???? Sketch a graph of the 8 parent functions on the worksheet you picked up

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Objectives I can write solutions in Interval Notation format I can graph the 8 parent functions

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These are all in Inequality Notation We are going to change them to INTERVAL NOTATION

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What is Interval Notation? [ ] means “included” (equal to) ( ) means “not included” HIGHLIGHT THIS IN YOUR NOTEBOOK! Like a closed dot,, > < Like an open dot,, > <

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Infinity??? We ALWAYS use ( ) with infinity!!! All negative numbers All positive numbers HIGHLIGHT THIS IN YOUR NOTEBOOK!

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Interval Notation Domain: All x-values that makeup the graph Range: All y-values that makeup graph Interval Notation: Used to show a range of values: Example: If the domain is all numbers between –3 to 6 then in interval notation: (-3, 6) If we want to include the numbers –3 and 6, then [-3, 6]

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Sets may be described in many ways: by roster, by set-builder notation, by interval notation, by graphing on a number line, and/or by Venn diagrams. Interval Notation An interval is a connected subset of numbers. [ means "included" or "closed". (means "not included" or "open". Example: 026 Interval notation---- graphing on a number line We will be using interval notation and number lines!

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x Example: x < 0 or 2 < x < 10 Example: Note infinite Is always open! openclosed

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Practice Let’s do some practice with the small white boards! Please get – White Board – Marker – Eraser/Rag

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Homework Read Textbook pages A2-A3 in back on interval notation if you need additional help WS 1-1 Start Parent Function Packets See graphs at back of textbook.

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