The endpoints of a line segment graphed on a Cartesian coordinate system are (2, -5) and (-4, 2). What are the coordinates of the midpoint of the segment?

Question

anonymous · Answer

A. 	(-4, 2)
  		B. 	(2, -3.5)
  		C. 	(-1, 1.5)
  		D. 	(1, -3.5)
  		E. 	(-1, -1.5)
  		F. 	(3.5, 2)

anonymous · Answer

The midpoint of a segment is the average of the x-values, and the average of the y-values - it's in the middle of the two points. The average of the x-values is -1, and the average of the y-values is-1.5. So choice C would be correct. If you don't understand how I averaged the numbers, I can explain that.

anonymous · Answer

i dont can you explain?

anonymous · Answer

wrong

anonymous · Answer

E

whpalmer4 · Answer

@HarryPotter5777 had the right idea, he just made a sign error.

x coordinate is average of 2, -4
add 2 and -4:  2 + -4 = 2-4 = -2
divide by 2: -2/2 = -1

y coordinate is average of -5, 2
add -5, 2: -5 + 2 = -3
divide by 2: -3/2 = -1.5

midpoint is at (-1,-1.5)