Gr 11 Math Lit: Ch 1.3 Working with 2 Relationships
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Questions and Answers

What is the point of intersection of two graphs?

  • The point where one graph is higher than the other
  • The point where one graph starts and the other graph ends
  • The point where the graphs are furthest apart
  • The point where the values represented by the graphs are exactly equal (correct)

    • How many values make up the point of intersection?

  • One value from the horizontal axis
  • Two values, one from each axis (correct)
  • Three values, one from each axis and one from the title
  • One value from the vertical axis

    • What is the first step in estimating the point of intersection from a graph?

  • Read the horizontal value
  • Identify the two graphs (correct)
  • Locate the intersection point
  • Read the vertical value

    • What does the value on the horizontal axis represent at the point of intersection?

    <p>The quantity or unit of electricity</p> Signup and view all the answers

    What is the purpose of the trial and improvement method?

    <p>To find the values at which two relationships are equal</p> Signup and view all the answers

    What is the first step in the trial and improvement method?

    <p>Write the equations for the two relationships</p> Signup and view all the answers

    What do you do after substituting values into the equations in the trial and improvement method?

    <p>Refine estimates and continue substituting</p> Signup and view all the answers

    What is the result of using the trial and improvement method?

    <p>A pair of values that produce the same result in both equations</p> Signup and view all the answers

    What does the point of intersection of two graphs represent in the context of comparing the cost of electricity on different systems?

    <p>The point where the cost of electricity on the two systems is the same</p> Signup and view all the answers

    When estimating the point of intersection from a graph, what do you need to do before locating the intersection point?

    <p>Identify the two graphs</p> Signup and view all the answers

    What is the purpose of reading the horizontal value at the intersection point?

    <p>To determine the quantity or unit where both graphs have the same value</p> Signup and view all the answers

    What do you need to do to find a pair of values that produce the same result in both equations using the trial and improvement method?

    <p>Substitute different values into the equations and refine estimates</p> Signup and view all the answers

    What is the result of using the trial and improvement method to find the point of intersection?

    <p>A pair of values that produce the same result in both equations</p> Signup and view all the answers

    Why is it important to understand what each graph represents before estimating the point of intersection?

    <p>To ensure you are comparing the same quantities or units</p> Signup and view all the answers

    What is the main advantage of using the trial and improvement method to find the point of intersection?

    <p>It provides more accurate results than estimating the point of intersection from a graph</p> Signup and view all the answers

    What do you need to have to use the trial and improvement method to find the point of intersection?

    <p>The equations of the two relationships</p> Signup and view all the answers

    What is the primary reason for identifying the two graphs when estimating the point of intersection?

    <p>To understand the context of the comparison</p> Signup and view all the answers

    In the trial and improvement method, what is the purpose of refining estimates?

    <p>To improve the accuracy of the result</p> Signup and view all the answers

    What is the primary advantage of using graphs to compare the cost of electricity on different systems?

    <p>It provides a visual representation of the data</p> Signup and view all the answers

    When estimating the point of intersection from a graph, what should you do after reading the horizontal value?

    <p>Read the vertical value</p> Signup and view all the answers

    What is the main difference between the graphical method and the trial and improvement method?

    <p>The trial and improvement method uses equations</p> Signup and view all the answers

    What is the purpose of substituting values into the equations in the trial and improvement method?

    <p>To see if they result in the same output</p> Signup and view all the answers

    What is the result of using the trial and improvement method to find the point of intersection?

    <p>A pair of values that produce the same result in both equations</p> Signup and view all the answers

    What is the importance of understanding the context of the comparison when estimating the point of intersection?

    <p>It provides a clear understanding of the relationships being compared</p> Signup and view all the answers

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