Question

MEDALLLLLLLLLSSSSSSSSSSSSSSSSSSSSSSSSSSSS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Find the coordinates of the midpoint between point A(18, -6) and the origin.

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Answer 1

\(\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
&(18\quad ,&-6)\quad &(0\quad ,&0)
\end{array}\\ \quad \\
\text{middle point of 2 points }\\
\left(\cfrac{x_2 + x_1}{2}\quad ,\quad \cfrac{y_2 + y_1}{2} \right)\)

Answer 2

wait do do I do next. I got 9,-6/2

Answer 3

\(\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
&(18\quad ,&-6)\quad &(0\quad ,&0)
\end{array}\\ \quad \\
\text{middle point of 2 points }\\
\left(\cfrac{x_2 + x_1}{2}\quad ,\quad \cfrac{y_2 + y_1}{2} \right)\implies \left(\cfrac{18}{2}\quad ,\quad \cfrac{-6}{2} \right)\implies (9,-3)
\)

thus ( 9, -3 ) is the coordinates of the middle point of A and the origin (0,0)

Answer 4

oh thanks you I didn't know what I did wrong, haha your the best

Answer 5

how did you do that

Answer 6

? what do you mean?

Answer 7

nvm thanks you

Answer 8

yw

Answer 9

wait can you help me with something else, it the same

Answer 10

ok

Answer 11

yea!!! ok. Find the coordinates of the midpoint of if A(-8, 7) and B(-9, 11).

Answer 12

\(\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
&(-8\quad ,&7)\quad &(-9\quad ,&11)
\end{array}\\ \quad \\
\text{middle point of 2 points }\\
\left(\cfrac{x_2 + x_1}{2}\quad ,\quad \cfrac{y_2 + y_1}{2} \right)\implies \left(\cfrac{-9+(-8)}{2}\quad ,\quad \cfrac{11+7}{2} \right)\)

Answer 13

thanks that all I need

Answer 14

yw

Answer 15

so its 8.5, 9 if I did it right

Answer 16

-8.5, yes

Answer 17

thanks again