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anonymous

  • one year ago

8. The curve y^2=12x intersects the line 3y=4x+6 at two points. Find the distance between the two points. I got the wrong answer and I don't know why! Please help!

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  1. anonymous
    • one year ago
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  2. Mehek14
    • one year ago
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    I just graphed both lines and they intersect at (0.75, 3) and (3,6)

  3. Mehek14
    • one year ago
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    http://prntscr.com/8fti5r

  4. anonymous
    • one year ago
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    Ok, I assumed that I wasn't allowed to graph anything but is that wrong then?

  5. Mehek14
    • one year ago
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    well you got 2 different points

  6. Mehek14
    • one year ago
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    \(\large{\bf{\sqrt{(3-0.75)^2+(6-3)^2}}}\)

  7. anonymous
    • one year ago
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    Yeah but if I could just graph to get the two points it would probably be easier since I went so wrong with my calculations. So what I mean is, if I graphed to get those two points that would be allowed?

  8. Mehek14
    • one year ago
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    does it say in your instructions if you can or not?

  9. anonymous
    • one year ago
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    not specifically. in the examples they give you before the questions, some of them say 'first draw a graph' but then they calculate it anyway

  10. Mehek14
    • one year ago
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    so yea I got the graph for you

  11. anonymous
    • one year ago
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    Ok, that will be easier then. I just used the points you got and tried getting the length but I got the wrong answer? I got -3.94 instead of the correct answer which is 3.75

  12. anonymous
    • one year ago
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    Oh nevermind I think I see where I went wrong, let me try again quick

  13. Mehek14
    • one year ago
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    how'd you get -3.94?

  14. anonymous
    • one year ago
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    Oh apparently I changed one of the signs by accident. Whoops. I am getting the right thing now though. Sorry for all the trouble and thanks very much for your help!

  15. Mehek14
    • one year ago
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    yw ^_^

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