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#8 CONCEPT QUIZ Concept #14: Algebra 1 Name: __________________ I can solve a quadratic. Solve . a. x2 = 196 b. r2 + 8 = 33 a. x = _______ and ________ b. r = _______ and ________ c. 36v2 = 100 (express as a fraction) d. 10n2 – 5 = 155 c. v = _______ and ________ d. n = _______ and ________ Concept #15: I can solve a quadratic by factoring. Solve each equation by factoring. Use the diamond method. a. x2 + 13x + 36 = 0 b. p2 – 3p = -2 a. x = _______ and ________ b. p = _______ and ________ Solve each equation by factoring. Use the GCF method. a. 2x2 + 8x = 0 b. 24m2 – 6m = 0 a. x = _______ and ________ b. m = _______ and _______ Concept #16: I can identify the vertex, of symmetry, and zeroes given a graph. Identify the vertex, axis of symmetry roots and if the graph has a minimum or maximum. Vertex: _____________ Vertex: ______________ Axis of symmetry: _____________ Axis of symmetry: _____________ Zeroes: _______________________ Zeroes: _______________________ (Circle one) Has a minimum / maximum. (Circle one) Has a minimum / maximum. Concept #17 : I can create a table and graph given a quadratic function Graph the following quadratics by making a table. Identify 5 points including the vertex. Show all work. a. f(x) = x2 + 2x – 1 b. x x f(x) f(x) QuickTime™ and a decompressor are needed to see this picture. VERTEX a= x b= VERTEX a= b= c= c= b 2a x b 2a Error! Concept # 13: a) I can factor a trinomial into two binomials. x2+ 20x + 19 b) ( )( ) x2 − 2x –24 ( )( )