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anonymous

  • 5 years ago

Help with the following: Find an equation of the line passing through each pair of point. Write equation in the form Ax=By=C

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  1. bahrom7893
    • 5 years ago
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    what are the points?

  2. anonymous
    • 5 years ago
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    oh sorry, there (-1,3) and (-2,-5)

  3. bahrom7893
    • 5 years ago
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    And I assume u meant Ax + By = C

  4. anonymous
    • 5 years ago
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    yes, sorry

  5. bahrom7893
    • 5 years ago
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    so first we find the slope: M = (-5-3)/(-2+1) = -8/-1 = 8

  6. anonymous
    • 5 years ago
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    Wait can you still stay on mines lemme jus re do it and check to see if i get it rite..plz

  7. bahrom7893
    • 5 years ago
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    okay

  8. anonymous
    • 5 years ago
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    Where did you get -2+1, is'nt it suppose to be -2-1?

  9. bahrom7893
    • 5 years ago
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    -2 - (-1) = -2 + 1

  10. anonymous
    • 5 years ago
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    oh okay, wait..;plzz i really need help

  11. bahrom7893
    • 5 years ago
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    i will.. just yell at me in chat if im not here

  12. anonymous
    • 5 years ago
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    okay

  13. anonymous
    • 5 years ago
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    okay i got the slope which i 8.. Then how to i put it in the ax+bx=c form

  14. bahrom7893
    • 5 years ago
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    okay now i would do this: y-y1 = M(x-x1) y-3 = 8(x+1)

  15. bahrom7893
    • 5 years ago
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    then simplify:

  16. anonymous
    • 5 years ago
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    SO its y-3=8x+8

  17. anonymous
    • 5 years ago
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    How do i simplify

  18. bahrom7893
    • 5 years ago
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    y -3 = 8x + 8 -8x + y = 8+3 -2x + y = 11

  19. bahrom7893
    • 5 years ago
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    So this is in form: Ax + By = C, where A = -2; B = 1 and C = 11

  20. anonymous
    • 5 years ago
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    How did you simplify??? And i keep getting -11=8x-y

  21. bahrom7893
    • 5 years ago
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    y -3 = 8x + 8 subtract 8x and add 3 from and to both sides: y - 8x - 3 + 3 = 8x - 8x + 3 + 8

  22. bahrom7893
    • 5 years ago
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    woops sorry that 2 was supposed to be an 8

  23. bahrom7893
    • 5 years ago
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    y - 8x = 11

  24. anonymous
    • 5 years ago
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    in the back of my book it gives me 8x-y=-11

  25. bahrom7893
    • 5 years ago
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    its the same thing, just multiply thru by negative 1... both of us are right

  26. anonymous
    • 5 years ago
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    so either way 8x-y=-11 and y-8x=11 are correct?

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