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anonymous

  • one year ago

The x-intercept of a line is -5 and the y-intercept of the line is -2. What is the equation of the line?

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  1. anonymous
    • one year ago
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    Well, if you know that the line stops at (-5,0) and (0,-2), you can find the slope by taking the change in y over the change in x. The slope is then -2/5. Then, you take the x of one coordinate and put it into the equation, finding what must be added to get y. -2/5*0=0. To get -2, you would need to subtract 2. Therefore, b is -2. So your line, in y=mx+b form, is y=-2/5x-2. Hope this helps!

  2. anonymous
    • one year ago
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    it does thanks so much!! i have two more problems i dont get can you help me?

  3. anonymous
    • one year ago
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    Sorry, I was eating lunch.

  4. anonymous
    • one year ago
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    I can try the other problems

  5. anonymous
    • one year ago
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    ok thanjs! i have no clue on this one Write an equation of the line perpendicular to the given line that contains P. y space equals space 1 fifth x space plus space 1; P(2, -7)

  6. anonymous
    • one year ago
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    but i think this one Write the equation of the line parallel to the given line containing point P. y space equals space 8 x space minus space 1; P(-6, 2) is y=8x+50

  7. anonymous
    • one year ago
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    youre supposed to use point slope from for both!

  8. anonymous
    • one year ago
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    Okay, so for the first line you need to find the slope. A perpendicular slope is the reverse, so instead of 1 over 5 it is negative 5 over 1, or -5.

  9. anonymous
    • one year ago
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    Do both lines in the first problem contain P??

  10. anonymous
    • one year ago
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    yeah

  11. anonymous
    • one year ago
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    is it -5x+3??

  12. anonymous
    • one year ago
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    and is the second one right??

  13. anonymous
    • one year ago
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    Yep!! Good job!! :)

  14. anonymous
    • one year ago
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    for which one??

  15. anonymous
    • one year ago
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    so the first and second are both right??

  16. anonymous
    • one year ago
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    Both!!

  17. anonymous
    • one year ago
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    thanks!!!!!!!!

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