plz solve this question fast
Attachments:
Answers
Answered by
0
Hello Mate
Answer,
(a,b) are the midpoint, so the formula is x1 +x2/2
The points are A(10,-6) B(K,4)
Apply the midpoint formula
10 + k/2 and -6 +4/2
10 + k /2 and -2/2
10 + k /2 and -1
a= 10 + k/2 and b= -1
given that a- 2b = 18
10 + k/2 - 2(-1) = 18
10 + k/2 +2*2 = 18
10 +k +4/2 = 18
10 +k/2 = 14
10 + k = 28
k= 28 - 10
k= 18
Similar questions