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19 votes
6) Endpoint: (5,0), midpoint: (1, -1)

User Piotr Wu
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1 Answer

7 votes
7 votes

hello

we're required to find the second end point from the given values

end point = (5, 0)

mid point = (1, -1)

to solve this problem, we'll need to use thw formula for mid-point


x,y=(x_2+x_1)/(2),(y_2+y_1)/(2)

now let's identify our variables


\begin{gathered} x=1,y=-1, \\ x_1=5,y_1=0 \\ x_2=\text{ ?} \\ y_2=\text{ ?} \end{gathered}

let's substitute in our values and solve respectively


\begin{gathered} x=(x_2+x_1)/(2) \\ 1=(x_2+5)/(2) \\ \text{cross multiply both sides} \\ 1*2=x_2+5 \\ 2=x_2+5 \\ x_2=2-5 \\ x_2=-3 \end{gathered}

now let's do the same for y


\begin{gathered} y=(y_2+y_1)/(2) \\ -1=(y_2+0)/(2) \\ \text{cross multiply both sides} \\ 2*-1=y_2+0_{} \\ -2=y_2 \\ y_2=-2 \end{gathered}

the values of the other end point are (-3, -2)

User Smileart
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