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anonymous

  • one year ago

if I am trying to find the x and y intercept, how would I with "y=x-5"

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  1. jim_thompson5910
    • one year ago
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    to find the y-intercept, replace x with 0 and evaluate what do you get?

  2. anonymous
    • one year ago
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    y=-5

  3. jim_thompson5910
    • one year ago
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    the y-intercept is (0,-5) which means there is a point at -5 on the y axis where the graph goes through |dw:1440291847757:dw|

  4. jim_thompson5910
    • one year ago
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    now plug in y = 0 and solve for x. This will give you the x-intercept

  5. anonymous
    • one year ago
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    what formula do I use?

  6. jim_thompson5910
    • one year ago
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    y = x-5 0 = x-5 ... replace y with 0 now isolate x. To do so, you add 5 to both sides (to undo the subtraction of 5)

  7. anonymous
    • one year ago
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    so 5 = x?

  8. jim_thompson5910
    • one year ago
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    yep x = 5 which means the x-intercept is (5,0) basically 5 on the x axis |dw:1440292096323:dw|

  9. anonymous
    • one year ago
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    then I would put y at -5 on the y axis and 5 on the x axis?

  10. jim_thompson5910
    • one year ago
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    a straight line goes through those two points |dw:1440292123939:dw|

  11. jim_thompson5910
    • one year ago
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    correct

  12. anonymous
    • one year ago
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    thamks ;)

  13. anonymous
    • one year ago
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    oops, I meant thanks lol

  14. jim_thompson5910
    • one year ago
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    you're welcome

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