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Savatey [412]
3 years ago
7

The point p (3,4) is the midpoint of the join of A (7,8) and B find tge coordinates of B

Mathematics
1 answer:
Shalnov [3]3 years ago
3 0

Answer:

B(-1, 0)

Step-by-step explanation:

coordinates of midpoint p(x,y) are calculated as

x= \frac{x_1+x_2}{2}  ---------- (1)

y= \frac{y_1+ y_2}{2}  -----------(2)

Here (x_1, y_1) = (7, 8) and (x_2, y_2) \ is \ unkwon

<u>Using equation (1)</u>

<u />3=\frac{7+x_2}{2} \\x_2=-1<u />

<u>Using equation (2)</u>

<u />4=\frac{8+y_2}{2} \\y_2=0<u />

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