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Math Help - Could any one help me with some graphing and equations?

  1. #1
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    Could any one help me with some graphing and equations?




    Hey you guys, I was wondering if anyone could help me out with this page?
    I'm confused on how to do these problems, it looks familiar, and I probably have done it before, but I've forgotten how to do them =x. Any help you guys could give me would be great. Thank you so much!
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  2. #2
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    Quote Originally Posted by Hanajima View Post



    Hey you guys, I was wondering if anyone could help me out with this page?
    I'm confused on how to do these problems, it looks familiar, and I probably have done it before, but I've forgotten how to do them =x. Any help you guys could give me would be great. Thank you so much!

    (1) Equation of line

    (2,4) with m=1/2

    do u know this formula :

    y-y_1=m(x-x_1) ?

    If so , just do some appropriate substitution

    y-4=1/2(x-2)

    y=1/2x+5

    Can you try (2) ?
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  3. #3
    MHF Contributor
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    Quote Originally Posted by Hanajima View Post



    Hey you guys, I was wondering if anyone could help me out with this page?
    I'm confused on how to do these problems, it looks familiar, and I probably have done it before, but I've forgotten how to do them =x. Any help you guys could give me would be great. Thank you so much!

    For the very first part ,

    (1) pick any points that the line passes through , lets say (1,2)

    And its gradient is 1 . i found this by drawing triangle , you should know this .

    Then use the formula again , y-2=1(x-1)

    y=x+1

    In standard form , it would be y-x-1=0
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