Asked by Josh
(-5,-2,) end point (-7,-5) mid point, how do I find another end point?
Answers
Answered by
MathMate
Mid-point = (end-point2 - end-point1)/2
So end-point 2 = mid-point + (mid-point - end-point1)
Example, for the x-coordinate,
Xend-point 2 = -7 + (-7-(-5))= -9
Check (-9+-5)/2=-7 OK.
I'll leave the calculation of the y-coordinate to you as an exercise.
So end-point 2 = mid-point + (mid-point - end-point1)
Example, for the x-coordinate,
Xend-point 2 = -7 + (-7-(-5))= -9
Check (-9+-5)/2=-7 OK.
I'll leave the calculation of the y-coordinate to you as an exercise.
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