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anonymous

  • one year ago

find the slope and a point on the line of the following equations y=3x-13, y=3x+11, 3y=x+11, 3y=x-13

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  1. anonymous
    • one year ago
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    match with these options slope=3 point (2,17) slope 1/3 point (19,2) slope 3 point (5,2) slope 1/3 point (17,-2) slope 1/3 point (-5,2)

  2. jdoe0001
    • one year ago
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    http://www.algebra-class.com/images/form.gif <---- pretty straightforward notice all given equations are already in slope-intercept form

  3. jdoe0001
    • one year ago
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    hint: the y-intercept IS a point on the line

  4. anonymous
    • one year ago
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    the options only list one point, how do I find the equation to match that point?

  5. jim_thompson5910
    • one year ago
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    To see if a point lies on a given line, you plug the coordinates of that point into the equation. Then you determine if the equation is true after simplifying. If the claim is "The point (2,17) lies on the line y=3x-13", then we test that claim like this y=3x-13 17=3*2-13 ... replace x with 2 and y with 17 17 = 6 - 13 17 = -7 ... this equation is false Since 17 = -7 is false, this means (2,17) does NOT lie on the line y = 3x-13

  6. anonymous
    • one year ago
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    thank you

  7. jim_thompson5910
    • one year ago
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    you're welcome

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