Ch 4_1-4_4 Study word_1_

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					Ch 4.1-4.4Study Guide                                               Graph.
        Graph.                                                  5
                                                                                      y
                                                                                10
    1
                                  y
                        10




                                                                     –10                      10        x




          –10                                 10    x

                                                                               –10



                                                                6 Graph the parabola:
                                                                                      y
                                                                                10
                       –10


    2 Graph the quadratic function. Label the vertex and axis
      of symmetry.
                                      y                                                             x
                                                                     –10                      10
                        10




                                                                               –10




                                                        x
                                                                7 Graph the function. Label the vertex, axis of symmetry,
           –10                                 10
                                                                  and x-intercepts.
                                                                                          y
                                                                                 10




                       –10



    3 Find the vertex and the axis of symmetry of the
                                                                     –10                           10       x
      parabola.


    4 Sketch the graph of the equation.
                                                                                –10


                                          y
                             10
                                                                    Write in standard form and graph.
                                                                8
                                                                                      y
                                                                                10




            –10                                    10       x



                                                                     –10                      10        x




                         –10

                                                                               –10
9.                                                                 15

                            y
                       10




                                                                   16     Find the x-intercepts of the graph of
                                                                          y=                .

         –10                             10   x




                                                                    Factor the expression.
                                                                   17
                      –10




                                                                   18
       Factor the expression.
10

                                                                    19




11 Write as the product of two factors:                             20


                                                                     Solve.
                                                                    21
12 What are the solutions of the equation?


                                                                    22



                                                                     Factor completely.
13 What are the solutions of the equation?                          23




                                                                    24        Solve using factoring:


     14       The height of a triangle is 5 feet longer than the
      base. The area of the triangle is 64 square feet. Find the
      height and base of the triangle.                              Find the zeros of the function if y is a function of x.

                                                                    25



       Find the zeros of the function.
Ch 4.1-4.4
Answer Section
    1 ANS: D             PTS: 1               DIF: 2               STA: MA.912.A.2.6 | MA.912.A.7.1
      TOP: Lesson 4.1 Graph Quadratic Functions in Standard Form   KEY: quadratic | graph
      MSC: Knowledge NOT: 978-0-547-22202-8
    2 ANS:
                               y
                          10




         –10                            10   x




                         –10




                                   3
       axis of symmetry: x =
                                   2
                3 17
       vertex: ( ,   )
                2 4

      PTS: 1                 DIF: 2               STA: MA.912.A.2.6 | MA.912.A.7.1 | MA.912.A.7.6
      TOP: Lesson 4.1 Graph Quadratic Functions in Standard Form
      KEY: graph | parabola | vertex | axis of symmetry | quadratic MSC: Knowledge
      NOT: 978-0-547-22202-8
    3 ANS:
      Vertex: (2, 4); Axis: x = 2

      PTS: 1             DIF: 2               STA: MA.912.A.7.6
      TOP: Lesson 4.1 Graph Quadratic Functions in Standard Form KEY: parabola | vertex | axis of symmetry
      MSC: Knowledge NOT: 978-0-547-22202-8
    4 ANS:




       PTS: 1             DIF: 2               STA: MA.912.A.2.6 | MA.912.A.7.1
       TOP: Lesson 4.1 Graph Quadratic Functions in Standard Form KEY: graph | parabola
   MSC:     Knowledge NOT: 978-0-547-22202-8
 5 ANS:     B               PTS: 1             DIF: 2                STA: MA.912.A.2.6 | MA.912.A.7.1
   TOP:     Lesson 4.2 Graph Quadratic Functions in Vertex or Intercept Form
   KEY:     graph | vertex form                MSC: Knowledge NOT: 978-0-547-22202-8
 6 ANS:




     PTS: 1                 DIF: 2                 STA: MA.912.A.2.6 | MA.912.A.7.1
     TOP: Lesson 4.2 Graph Quadratic Functions in Vertex or Intercept Form
     KEY: graph | vertex form                      MSC: Knowledge NOT: 978-0-547-22202-8
 7   ANS: A                 PTS: 1                 DIF: 2
     STA: MA.912.A.2.6 | MA.912.A.7.1 | MA.912.A.7.6
     TOP: Lesson 4.2 Graph Quadratic Functions in Vertex or Intercept Form
     KEY: parabola | quadratic | function | intercept                 MSC: Knowledge
     NOT: 978-0-547-22202-8
 8   ANS: G                 PTS: 1                 DIF: 2             STA: MA.912.A.2.6 | MA.912.A.7.1
     TOP: Lesson 4.2 Graph Quadratic Functions in Vertex or Intercept Form
     KEY: graph | factored form | quadratic | function                MSC: Knowledge
     NOT: 978-0-547-22202-8
 9   ANS: A                 PTS: 1                 DIF: 2             STA: MA.912.A.2.6 | MA.912.A.7.1
     TOP: Lesson 4.2 Graph Quadratic Functions in Vertex or Intercept Form
     KEY: graph | parabola | quadratic             MSC: Knowledge NOT: 978-0-547-22202-8
10   ANS: G                 PTS: 1                 DIF: 2             STA: MA.912.A.4.3 | MA.912.A.7.2
     TOP: Lesson 4.3 Solve x^2 + bx + c = 0 by Factoring              KEY: factor | quadratic | trinomial
     MSC: Knowledge NOT: 978-0-547-22202-8
11   ANS: A                 PTS: 1                 DIF: 2             STA: MA.912.A.4.3
     TOP: Lesson 4.3 Solve x^2 + bx + c = 0 by Factoring              KEY: factor | quadratic | trinomial
     MSC: Knowledge NOT: 978-0-547-22202-8
12   ANS: G                 PTS: 1                 DIF: 2             STA: MA.912.A.7.2 | MA.912.A.4.3
     TOP: Lesson 4.3 Solve x^2 + bx + c = 0 by Factoring
     KEY: factor | zeros | solve | equation | quadratic | x-intercept MSC: Knowledge
     NOT: 978-0-547-22202-8
13   ANS: C                 PTS: 1                 DIF: 2             STA: MA.912.A.7.2 | MA.912.A.4.3
     TOP: Lesson 4.3 Solve x^2 + bx + c = 0 by Factoring              KEY: solve | equation | quadratic | factor
     MSC: Knowledge NOT: 978-0-547-22202-8
14   ANS:
     Base: 8 ft; Height: 11 ft

   PTS: 1               DIF: 2                    TOP: Lesson 4.3 Solve x^2 + bx + c = 0 by Factoring
   KEY: triangle | trinomial | factor | base | height                MSC: Application
   NOT: 978-0-547-22202-8
15 ANS:
     –8, –4

     PTS:     1               DIF: 2                  STA: MA.912.A.4.3 | MA.912.A.7.2
     TOP:     Lesson 4.3 Solve x^2 + bx + c = 0 by Factoring           KEY: solve | quadratic | factor
     MSC:     Knowledge NOT: 978-0-547-22202-8
16   ANS:     H               PTS: 1                  DIF: 2           STA: MA.912.A.7.6
     TOP:     Lesson 4.3 Solve x^2 + bx + c = 0 by Factoring           KEY: quadratic | x-intercepts | factor
     MSC:     Knowledge NOT: 978-0-547-22202-8
17   ANS:     C               PTS: 1                  DIF: 1           STA: MA.912.A.4.3 | MA.912.A.7.2
     TOP:     Lesson 4.4 Solve ax^2 + bx + c = 0 by Factoring          KEY: factor | quadratic | trinomial
     MSC:     Knowledge NOT: 978-0-547-22202-8
18   ANS:     I               PTS: 1                  DIF: 2           STA: MA.912.A.4.3 | MA.912.A.7.2
     TOP:     Lesson 4.4 Solve ax^2 + bx + c = 0 by Factoring
     KEY:     trinomial | factor | difference of two squares           MSC: Knowledge
     NOT:     978-0-547-22202-8
19   ANS:


   PTS: 1             DIF: 2                STA: MA.912.A.4.3
   TOP: Lesson 4.4 Solve ax^2 + bx + c = 0 by Factoring       KEY:            trinomial | factor
   MSC: Knowledge NOT: 978-0-547-22202-8
20 ANS: G             PTS: 1                DIF: 2            STA:            MA.912.A.4.3
   TOP: Lesson 4.4 Solve ax^2 + bx + c = 0 by Factoring       KEY:            factor | difference of squares
   MSC: Knowledge NOT: 978-0-547-22202-8
21 ANS: A             PTS: 1                DIF: 2            STA:            MA.912.A.7.2
   TOP: Lesson 4.4 Solve ax^2 + bx + c = 0 by Factoring       KEY:            factor | solve | quadratic
   MSC: Knowledge NOT: 978-0-547-22202-8
22 ANS:
    1 8
    ,
    3 5

   PTS:       1             DIF: 2                STA: MA.912.A.7.2
   TOP:       Lesson 4.4 Solve ax^2 + bx + c = 0 by Factoring       KEY: factor | solve | quadratic | trinomial
   MSC:       Knowledge NOT: 978-0-547-22202-8
23 ANS:       C             PTS: 1                DIF: 2            STA: MA.912.A.4.3
   TOP:       Lesson 4.4 Solve ax^2 + bx + c = 0 by Factoring       KEY: polynomial | factor
   MSC:       Knowledge NOT: 978-0-547-22202-8
24 ANS:



   PTS:       1             DIF: 2                STA: MA.912.A.4.3 | MA.912.A.7.2
   TOP:       Lesson 4.4 Solve ax^2 + bx + c = 0 by Factoring       KEY: factor | quadratic | solve
   MSC:       Knowledge NOT: 978-0-547-22202-8
25 ANS:       A             PTS: 1                DIF: 3
   TOP:       Lesson 4.4 Solve ax^2 + bx + c = 0 by Factoring       KEY: factor | rational | root | quadratic
   MSC:       Knowledge NOT: 978-0-547-22202-8

				
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