Problem

Ratios of Directed Line Segments
Score: 4/6 Penalty: 1 off
Question
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What are the coordinates of the point on the directed line segment from (7,5) to (8,10) that partitions the segment into a ratio of 3 to 2 ?
Answer
Attempt 2 out of 2

Answer

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Answer

Combine the x and y coordinates to get the final answer: (1,7)

Steps

Step 1 :Use the formula for dividing a line segment in a given ratio: (x,y)=(x1m+x2nm+n,y1m+y2nm+n)

Step 2 :Substitute the given values into the formula: (7,5) and (8,10) are the endpoints, and the ratio is 3 to 2

Step 3 :Calculate the x-coordinate: x=(7)3+823+2=21+165=55=1

Step 4 :Calculate the y-coordinate: y=(5)3+(10)23+2=15205=355=7

Step 5 :Combine the x and y coordinates to get the final answer: (1,7)

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