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Unformatted text preview: Unit 3 Review Show all possible work 1. Find the [a] vertex and [b] axis of symmetry of the graph of 1. a. Vertex: ___________ . ( 29 7 4 8 2 = a x x f [c] Does it have a minimum or maximum; if so which? b. Axis of Sym: _____ c. _________________ 2. Graph the quadratic function f(x) = x 2 + 4x + 7 by determining whether the graph opens up or down _______ and by finding its vertex ___________ axis of symmetry ___________, x and yintercepts, if any, ___________7654321 1 2 3321 1 2 3 4 5 6 7 8 9 10 11 12 13 x y 3. The graph of f(x) = ax 2 + bx +c has its vertex at (5, 4) and passes through 3. a = ____ the point (2, 94). Find the values of a, b, and c. b = ____ c = ____ 4. Which of the following is not a polynomial? 4. _______ [A] x 2 2 [B] x x + 2 2 9 [C]  [D] x 2 Use the graph below [f(x) =  x 2 + 1; g(x) = x 3] to answer questions 5 and 6. 5. Find f(x) g(x) 5. ______________ 6. Find f(x) < 1 6. ______________ 7. Graph the function ( 29 ( 29 =  f x x 4 4 1 7. _______ [A] [B] [C] [D] 8 For ( 29 ( 29 ( 29 ( 29 =  + + + f x x x x 2 2 1 5 3 2 1 3 , find the power function, maximum turning points, the real zeros, and whether the graph touches or crosses at the xaxis....
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This note was uploaded on 01/04/2012 for the course MAC 1105 taught by Professor Staff during the Fall '08 term at Miami Dade College, Miami.
 Fall '08
 Staff

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