Applied-Algebra試験資料、Applied-Algebraシュミレーション問題集

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WGU Applied-Algebra Exam Syllabus Topics:

SectionObjectives
Topic 1: Functions and Graphs- Graphing Functions
  • 1. Transformations of graphs
    • 2. Coordinate plane interpretation
      - Function Concepts
      • 1. Domain and range
        • 2. Function notation
          Topic 2: Exponential and Logarithmic Concepts- Logarithmic Basics
          • 1. Logarithm properties
            • 2. Conversion between exponential and logarithmic form
              - Exponential Functions
              • 1. Growth and decay models
                • 2. Exponential equations
                  Topic 3: Polynomial and Rational Expressions- Polynomials
                  • 1. Operations with polynomials
                    • 2. Factoring techniques
                      - Rational Expressions
                      • 1. Simplification
                        • 2. Restrictions on variables
                          Topic 4: Foundations of Algebra- Algebraic Expressions
                          • 1. Simplifying expressions
                            • 2. Evaluating expressions
                              • 3. Order of operations
                                - Equations and Inequalities
                                • 1. Inequalities and interval notation
                                  • 2. Linear equations in one variable
                                    Topic 5: Linear Functions and Systems- Linear Equations
                                    • 1. Point-slope form
                                      • 2. Slope-intercept form
                                        - Systems of Equations
                                        • 1. Substitution method
                                          • 2. Elimination method

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                                            試験Applied-Algebra試験資料 & 一生懸命にApplied-Algebraシュミレーション問題集 | 便利なApplied-Algebra認定内容

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                                            WGU Applied Algebra FXO2 PFXP C957 認定 Applied-Algebra 試験問題 (Q76-Q81):

                                            質問 # 76
                                            A researcher collected data on the average number of product returns per month to a company over time. The results are shown in the scatterplot. The graphed regression function has an r
                                            2
                                            value of 0.45.

                                            Which range of x-values is appropriate for extrapolation?

                                            正解：D

                                            解説：
                                            The coefficient of determination, r
                                            2
                                            , measures how well a regression model fits the data. A value close to 1 indicates a strong fit, while a lower value indicates that the model does not explain the data as reliably. Here, r
                                            2
                                            =0.45, which is below 0.7. That means the model does not have a strong enough fit for reliable extrapolation in this question. Extrapolation means using the model to predict values outside the observed data range, which is riskier than interpolation. Because the model fit is not strong, choosing an extended range of x-values would not be appropriate. The correct reason is that extrapolation is not appropriate because r
                                            2
                                            < 0.7. Therefore, the answer is D.


                                            質問 # 77
                                            A researcher collected data on the number of members in a national association over time. The results are shown in the scatterplot. The graphed regression function has an r