passpadi

2003

Mathematics

67ca00ce0c643c71d77dee1f

A triangle has vertices P(-1,6), Q(-3, -4) and R(1, -4).Find the midpoint of PQ and QR respectively.

A.

(0,-2) and (-1, -4)

B.

(-1,0) and (-1,-1)

C.

(-2,1) and (0,1)

D.

(-2,1) and (-1,-4)

Correct Answer: (-2,1) and (-1,-4)

Explanation

SOLUTION: x 2 + x 1 2 ; y 2 + y 1 2 = 1 + ( 3 ) 2 ; 6 4 2 = 4 2 ; 2 2 = 2 , 1

SOLUTION: x 2 + x 1 2 ; y 2 + y 1 2 = 1 + ( 3 ) 2 ; 6 4 2 = 4 2 ; 2 2 = 2 , 1
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