mmontes71045pdy5oi
mmontes71045pdy5oi mmontes71045pdy5oi
  • 24-08-2018
  • Mathematics
contestada

The midpoint of AB is M (-3,-3) if the coordinates of A are (-8,-2)what are the coordinates of B

The midpoint of AB is M 33 if the coordinates of A are 82what are the coordinates of B class=

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MrGumby
MrGumby MrGumby
  • 31-08-2018

The coordinates of B would be (2, -4)

In order to find this, we need to know that the value of M's points will always be the average of A and B's points. This is because it is the midpoint. Therefore we can use the following formula.

Value of x

(A + B)/2 = M

(-8 + B)/2 = -3

-8 + B = -6

B = 2

Then we can do the same for the y values

Value of y

(A + B)/2 = M

(-2 + B)/2 = -3

-2 + B = -6

B = 4

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