Source: Revised GRE PDF 2nd Ed. Section 6; #12 (p. 89)

1

In the xy-plane, points R and S

In the xy-plane, points R and S have coordinates (-2, 1) and (4, -7), respectively. If point P is the midpoint of line segment RS, what are the coordinates of point P ? (-1, -3), (1, -4), (1, -3), (2, -4), (3, -4)

2 Explanations

1

Abhiram Ravikumar

Can we use the mid-point formula here?

Jun 17, 2017 • Comment

Cydney Seigerman, Magoosh Tutor

Yes, we can use the midpoint formula to solve this question!

Midpoint = ( [x1 + x2]/2 , [y1 + y2]/2)
P = ( [-2 + 4]/2 , [1 - 7]/2)
P = ([2]/2 , [-6]/2)
P = (1, -3)

And that's the correct answer! :)

Jun 19, 2017 • Reply

1

Gravatar Chris Lele, Magoosh Tutor

Sep 27, 2012 • Comment

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