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anonymous

  • one year ago

Which of the lines graphed in the diagram represents the equation x – 3y = –3? line a line b line c line d http://static.k12.com/eli/ecollege/543/7_29458/2_30740_6_29465/cd8056edd781424ddded90dad798cb91bf271204/media/ff92a4dd8ca007510d3a0d1db42eb3c7937180bf/mediaasset_1312637_1.jpg

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  1. mathstudent55
    • one year ago
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    A vertical line has equation: x = k, where k is the x-intercept. A horizontal line has equation y = k, where k is the y-intercept. The given equation is not of the form x = k or y = k, so you can eliminate the vertical and horizontal lines.

  2. mathstudent55
    • one year ago
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    |dw:1434305309197:dw|

  3. mathstudent55
    • one year ago
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    Solve the equation of the given line for y. That will put the equation in the y = mx + b form, where m is the slope. Then from the slope and the figure above, you'll be able to tell which choice it is.

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