Math Practice 101
Homework Explained - Math Practice 101

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Grade 8 McGraw Hill Glencoe - Answer Keys


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  Independent Practice  

Solve each system of equations by graphing.

  • Question 1 (request help)

    \(\text{y} = \text{x}\)

    \(\text{y} = 2\text{x} - 4\)
  • Type below:
  • Question 2 (request help)

    \(\text{y} = -\cfrac{1}{2}\text{x} + 5\)

    \(\text{y} = 3\text{x} + 2\)
  • Type below:
  • Question 3 (request help)

    \(\text{y} - 2\text{x} = 4\)

    \(\text{y} = 2\text{x}\)
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  • Question 4 (request help)

    \(\text{y} - 4\text{x} = 8\)

    \(\text{y} = 2(2\text{x} + 4)\)
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  • Question 5 (request help)

    \(\text{x} + \text{y} = 3\)

    \(\text{y} = -3(2\text{x} - 1)\)
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  • Question 6 (request help)

    \(-\text{x} + \text{y} = -2\)

    \(\text{y} = 2\)
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  • Question 7 (request help)

    Copy and Solve A pet store currently has a total of 45 cats and dogs. There are 7 more cats than dogs. Find the number of cats and dogs in the store. On a separate sheet of paper, write and solve a system of equations that represents the situation. Interpret the solution.
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Copy and Solve A line passes through each pair of points. Determine if the system has no solution, one solution, or an infinite number of solutions. Show your work on a separate piece of paper.

  • Question 8 (request help)

    (0, 3) and (-2, 5);

    (5, -2) and (0, 3)
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  • Question 9 (request help)

    (4, 1) and (0, 1);

    (0, -4) and (4, 4)
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  • Question 10 (request help)

    (-2, -2) and (0, 2);

    (1, 1) and (0, -1)
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