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Babyjaguar<3

  • 2 years ago

Identify the correct slope and y intercept of the equation 3x - 3y = 4. slope = -1; y intercept at (0, -four thirds) slope = 1; y intercept at (0, -four thirds) slope = 3; y intercept at (0, -1) slope = -3; y intercept at (0, 1)

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  1. kelliegirl33
    • 2 years ago
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    you need to put it in y = mx + b form.....then m is the slope and b is the y intercept

  2. Babyjaguar<3
    • 2 years ago
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    That's what I get confused with lol

  3. kelliegirl33
    • 2 years ago
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    3x - 3y = 4 -3y = -3x + 4 (multiply by -1 to get 3y positive) 3y = 3x - 4 are you with me so far ?

  4. Babyjaguar<3
    • 2 years ago
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    yes

  5. kelliegirl33
    • 2 years ago
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    3y = 3x - 4 (now divide by 3) y = 3/3x - 4/3 y = x - 4/3 so your answer is : slope 1, and y intercept (0,-4/3)

  6. Babyjaguar<3
    • 2 years ago
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    Thank you Kellie may you help me in another one??

  7. kelliegirl33
    • 2 years ago
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    possibly...what you got

  8. Babyjaguar<3
    • 2 years ago
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    Choose the equation of the line passing through the point (-2, 6) and parallel to y = one halfx - 8. y = one halfx + 7 y = one halfx + 5 y = 2x + 7 y = 2x + 5

  9. kelliegirl33
    • 2 years ago
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    if you are looking for a parallel line, the slope will be the same as the original equation. In this case, the slope is 1/2. Understand ?

  10. Babyjaguar<3
    • 2 years ago
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    yes

  11. kelliegirl33
    • 2 years ago
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    Now we will use y = mx + b.....m = 1/2 and we can use points (-2,6) now lets sub... 6 = 1/2(-2) + b can you solve for b ?

  12. Babyjaguar<3
    • 2 years ago
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    No .-.

  13. kelliegirl33
    • 2 years ago
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    6 = 1/2(-2) + b 6 = -1 + b 6 + 1 = b 7 = b therefore, your parallel equation is : y = 1/2x + 7

  14. Babyjaguar<3
    • 2 years ago
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    Thanks (: I get it now .

  15. kelliegirl33
    • 2 years ago
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    good deal :) glad to help

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