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How to write an equation from a graph

Posted on October 23, 2021 By mobete 3 Comments on How to write an equation from a graph

How to write an equation from a graph

Mathematics

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Comments (3) on “How to write an equation from a graph”

  1. Expert says:
    October 23, 2021 at 1:41 pm

    < xcy ≅ < xby

    step-by-step explanation:

    in δcax and δbax,

    ac ≅ ab (given)< cax ≅ < bax   (given)ax ≅ ax (common side)

    so, δcax ≅ δbax (side-angle-side or sas)

    since δcax ≅ δbax, we can conclude < acx ≅ < abx

    in δacy and δaby,

    ac ≅ ab (given)< cay ≅ < bay (since < cax ≅ < bax is given and xy is the extension of line ax)ay ≅ ay (common side)

    so, δacy ≅ δaby (side-angle-side or sas)

    since δacy ≅ δaby, we can conclude < acy ≅ < aby

    now,

    < acy ≅ < aby

    => < acx + < xcy ≅ < abx + < xby

    => < acx + < xcy ≅ < acx + < xby   (since < acx ≅ < abx already proved above)

    subtracting < acx from both sides, we get

    < acx + < xcy -< acx ≅ < acx + < xby -< acx

    cancelling out < acx and -< acx from both sides, we get

    < xcy ≅ < xby (proved)

    [tex]Use a paragraph, flow chart, or two-column proof to prove the angle congruency. given: ∠cxy ≅ ∠bxy[/tex]

    Reply
  2. Badbpyz7550 says:
    October 23, 2021 at 6:59 pm

     It depends what type of equation you are trying to solve for. 
    For slope intercept form (y=mx+b)
     - pick two coordinates and find the slope using the slope formula; y2-y1 over x2-x1. 
    - the y-intercept is usually found in (0, b) form. 
    After you have found the slope and the y - intercept you can finally plug in your numbers to match the formula. 
    Here is an example:
    - My two coordinates on the line are (0,8) and (-1,5) 
    - 8-5 over 0--1 = 3 over 1, or 3 is my slope.
    - To find the y intercept look for the pair that is found in (0,b) form which in this case is (0,8) so my y intercept is 8.
    You found your slope and y intercept so your equation is y = 3x + 8 
    Hopefully this helped! This is how you find an equation for slope intercept form! If it is any other formula it is basically the same general steps. 

    Reply
  3. Expert says:
    October 23, 2021 at 7:46 pm

    11 feet 6 inches and 8 feet 6 inches

    Reply

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