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    First one I'm stuck on...

    1) x = 4t + 3 , y= 16t(t+1)

    Find a cartesian equation

    for my answer I got (x - 3)(x - 2) actual answer is (x - 3)(x + 1)

    2) x= t + 1/t^3 , y= t^3 + 1/t^3

    answer is x^3= y + 3x

    Find a cartesian equation.
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    (Original post by AndyOC)
    First one I'm stuck on...

    1) x = 4t + 3 , y= 16t(t+1)

    Find a cartesian equation

    for my answer I got (x - 3)(x - 2) actual answer is (x - 3)(x + 1)

    2) x= t + 1/t^3 , y= t^3 + 1/t^3

    answer is x^3= y + 3x

    Find a cartesian equation.
    t=(1/4)(x-3)

    Sub that in to the y equation
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    (Original post by Shumaya)
    t=(1/4)(x-3)

    Sub that in to the y equation
    yeah i see what I've done now just an algebra mistake, thank you! could you help with the second one please?
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    (Original post by AndyOC)
    yeah i see what I've done now just an algebra mistake, thank you! could you help with the second one please?
    I'm working on it
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    (Original post by Shumaya)
    I'm working on it
    Any luck with that question?
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    (Original post by AndyOC)
    Any luck with that question?
    Nope haha. Just hoping that the parametric equations in the exam are nicer!
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    If you can't do it tonight I'll do it tomorrow morning for you :P
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    (Original post by Shumaya)
    Nope haha. Just hoping that the parametric equations in the exam are nicer!
    Yeah hope so!
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    (Original post by nobodycarescarla)
    If you can't do it tonight I'll do it tomorrow morning for you :P
    If you could that would be great
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    (Original post by AndyOC)
    If you could that would be great
    Hey can you double check for me
    2) x= t + 1/t^3 , y= t^3 + 1/t^3 that this is the right question? I cant understand how they got the answer, it doesnt seem right
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    (Original post by nobodycarescarla)
    Hey can you double check for me
    2) x= t + 1/t^3 , y= t^3 + 1/t^3 that this is the right question? I cant understand how they got the answer, it doesnt seem right
    What was your answer?
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    (Original post by nobodycarescarla)
    Hey can you double check for me
    2) x= t + 1/t^3 , y= t^3 + 1/t^3 that this is the right question? I cant understand how they got the answer, it doesnt seem right
    Name:  image.jpg
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Size:  249.2 KBAttachment 547871547873Question and answer
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    Attachment 547883547885

    Hey you use your answer to part a
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    (Original post by AndyOC)
    Name:  image.jpg
Views: 95
Size:  249.2 KBAttachment 547871547873Question and answer
    Ah thankyou! I mis understood what you ment :')
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    (Original post by nobodycarescarla)
    Ah thankyou! I mis understood what you ment :'
    Name:  20160611_151719.jpg
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    Brilliant thank you!
 
 
 
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