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Slide 2 1. 2. ANSWER Lesson 1.1, Real Numbers Evaluate: 3. Slide 3 Check Homework Slide 4 1 4 9 16 25 36 49 64 81 100 121 144 169 196 225 256 289 324 361 400 441 484 529 576 625 676 729 784 841 900 1 2 4 8 16 32 64 128 256 512 Slide 5 PRE Lesson 1.1-Tools of Algebra Objectives: To review the set of Real Numbers To review the properties of Algebra To understand interval and set notation. Slide 6 Slide 7 Slide 8 Slide 9 Slide 10 SETS & ELEMENTS A set is a collection of objects. - the objects are called the elements of theset. If S is a set, the notation of means that a is an element of S. Slide 11 means that b is not an element of S. Ex1. If Z represents the set of integers, then but Slide 12 If S and T are sets, then, represents their union. The union of sets consists of all elements in both sets. Ex 2. Find if Slide 13 The intersection of S and T is the set consisting of all elements that are in both sets. It is only what they have in common. Ex 3. Find if Slide 14 NOTATION OF SETS The set A that consists of positive integers less than 7 Braces { } Set-builder notation A is the set of all x such that x is an integer and Interval notation Is a way to write the domain and the range. (0,7) Slide 15 b b Slide 16 Ex 4. Find,,, Slide 17 Classwork: Book: pg.11, 36-60 even Slide 18 Slide 19