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cheesymcdouble

  • one year ago

the midpoint of cd is e(-1,0). one endpoint is c(5,2). what are the coordinates of the other endpoint?

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  1. freckles
    • one year ago
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    you want the average of the x values of the endpoints to equal the x value of the midpoint you want the average of the y values of the endpoints to equal the y value of the midpoint remember the average of two numbers is the sum of those numbers divided by 2

  2. freckles
    • one year ago
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    so you have the following two equations to solve: \[\frac{5+x}{2}=-1 \text{ and } \frac{2+y}{2}=0\]

  3. freckles
    • one year ago
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    where (x,y) is assumed to be the other endpoint

  4. cheesymcdouble
    • one year ago
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    ok thanks that really helps a lot

  5. freckles
    • one year ago
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    np :)

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