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waheguru

  • 4 years ago

Find the Equation of the Line that has the same y-intercept as y=-3x+4 and same x intercept as 4x-8y=20 Please guide me through this question

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  1. waheguru
    • 4 years ago
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    Hello Mr.GT, Nice to see you =)

  2. waheguru
    • 4 years ago
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    Have exams tommorow

  3. anonymous
    • 4 years ago
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    First equation y-intercept is 4 (where x =0). Second equation x-intercept is 5 (where y = 0) So, the points this new line passes through are (0,4) and (5,0). Now, find the equation of this line as you would find for any two points.

  4. waheguru
    • 4 years ago
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    I see

  5. waheguru
    • 4 years ago
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    So it's a straight line?

  6. waheguru
    • 4 years ago
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    Horizontal or vertical

  7. anonymous
    • 4 years ago
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    Yes. |dw:1327605083893:dw|

  8. anonymous
    • 4 years ago
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    Always best to mark the points in a coordinate plane and connect to get a visual sense of the line and its direction.

  9. waheguru
    • 4 years ago
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    The slope is 4/5 but is the x intercept also 5, making the equation y=4/5x + 5

  10. waheguru
    • 4 years ago
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    But according to the answers, this is wrong?

  11. anonymous
    • 4 years ago
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    Welll....slope is -4/5. You should use "y intercept" not "x intercept" for the constant.

  12. anonymous
    • 4 years ago
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    Slope = (4-0)/(0-5) = -4/5

  13. waheguru
    • 4 years ago
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    oooooook

  14. waheguru
    • 4 years ago
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    what is the y intercept, also -4

  15. anonymous
    • 4 years ago
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    Just looking at the line you can tell slope is negative because as "x" increases, value of "y" keeps decreasing.

  16. anonymous
    • 4 years ago
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    Y intercept is +4 as given by point (0,4).

  17. waheguru
    • 4 years ago
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    I get it now

  18. waheguru
    • 4 years ago
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    Thank You For your Help

  19. anonymous
    • 4 years ago
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    Good!

  20. waheguru
    • 4 years ago
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    =)

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