SOLUTION: ABC is a straight line AC:BC=8:5 A(-2,1) B(12,9) find the co ordinate of B

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Question 935649: ABC is a straight line AC:BC=8:5 A(-2,1) B(12,9) find the co ordinate of B
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
I think you mean C.
Look at the change in x.
DELTA%2AX=12-%28-2%29=14
DELTA%2AY=9-1=8
Multiply by 5%2F8 and add to B to get C.
X%5Bc%5D=12%2BdX=12%2B14%285%2F8%29=83%2F4
Y%5Bc%5D=dY=9%2B8%285%2F8%29=14