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What are the coordinates of the point on the directed line segment from (3,-3) to (7,5) thar oartitions the segment into a ratio of 5 to 3?

User JeanLuc
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1 Answer

6 votes
6 votes

Answer:

(x, y) = (5.5, 2)

Step-by-step explanation:

The coordinates of a point that divide the segment from point (x1, y1) to (x2, y2) into a ratio of a:b can be found using the following equations:


\begin{gathered} x=x_1+(a)/(a+b)(x_2-x_1) \\ y=y_1+(a)/(a+b)(y_2-y_1) \end{gathered}

So, replacing (x1, y1) by (3, -3), (x2, y2) by (7, 5) and the ratio a:b by 5:3, we get that the coordinates of the point are:


\begin{gathered} x=3+(5)/(5+3)(7-3) \\ x=3+(5)/(8)(4) \\ x=3+2.5=5.5 \\ y=-3+(5)/(5+3)(5-(-3)) \\ y=-3+(5)/(8)(5+3) \\ y=-3+(5)/(8)(8) \\ y=-3+5=2 \end{gathered}

Therefore, the coordinates of the point are (x, y) = (5.5, 2)

User Pkhlop
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