7.7 分析关系-interactive

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  分析关系

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  Mission To Mars
  ::火星飞行任务

  

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  Scientists are planning a mission to go to Mars and exploring ways to make Mars habitable. W hat do you think it would it feel like to stand on Mars?
  ::科学家们正在计划一个去火星的任务,并探索使火星适于居住的方法。 你认为站在火星上会有什么感觉?

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  Use the interactive below to explore  the relationship between weight on Earth vs. weight on Mars. How does the graph help visualize the independent and dependent variables?
  ::使用下面的互动来探索地球重量与火星重量之间的关系。 图形如何帮助视觉化独立和依附变量?

   

   

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  Discussion Questions
  ::讨论问题 讨论问题

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  1. Why do you think there are lines connecting the points?
  ::1. 你认为为什么有连接点的线条?

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  2. Which variable do you think is the independent variable and which do you think is the dependent variable? Support your answer with evidence.
  ::2. 你认为哪个变量是独立的变量,哪个变量是依赖变量?用证据支持回答。

   

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  Tables and Graphs
  ::表和图表

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  In addition to using equations, relationships between independent and dependent variables can be modeled using a table and a graph.
  ::除了使用方程外,独立变量和依赖变量之间的关系还可以使用表格和图表进行模型构建。

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  Example
  ::示例示例示例示例

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  Marissa works as a waitress and her hourly salary is modeled in the graph below. Use the interactive below to see how a table and a graph can represent the same independent and dependent variables.
  ::Marissa作为女服务员工作,其小时工资以下图为模型。 使用下面的交互式数据来查看表格和图表如何代表相同的独立和依赖变量。

   

   

   

   

   

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  Mission to Mars Continued
  ::火星飞行任务

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  When writing an equation , the letter x is used to represent the independent variable and the letter y is used to represent the dependent variable. Similarly, when displaying a relationship on a graph, the $\begin{align*}x\text{-}\end{align*}$ axis is used to represent the independent variable and the $\begin{align*}y\text{-}\end{align*}$ axis is used to represent the dependent variable.
  ::写入公式时,字母 x 用于代表独立的变量,字母 y 则用于代表独立的变量。同样,在图形显示关系时, X 轴用于代表独立的变量,Y 轴用于代表独立的变量。

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  In the following interactive, see how the independent variable of an object’s weight on Earth affects the dependent variable of that object’s weight on other planets.
  ::在接下来的互动中,请看一个物体在地球上的重量的独立变量是如何影响该物体在其他行星上重量的依附变量的。

   

   

   

   

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   Summary
  ::摘要

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  • You can use a table and graph to model the relationships between quantities.
    ::您可以使用表格和图表来模拟数量之间的关系。
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  • In a graph, the x-axis is the independent variable and the y-axis is the dependent variable.
    ::在图表中, X 轴是独立的变量, Y 轴是独立的变量。