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Find the points of trisection of the lin...

Find the points of trisection of the line segment joining the points (5,-6), (-3,4).

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To find the points of trisection of the line segment joining the points \( A(5, -6) \) and \( B(-3, 4) \), we will use the section formula. The points of trisection divide the line segment into three equal parts. ### Step 1: Identify the points and the ratios Let \( A(5, -6) \) and \( B(-3, 4) \) be the two points. We need to find points \( P \) and \( Q \) such that \( AP = PQ = QB \). Since these segments are equal, we can say that: - \( P \) divides \( AB \) in the ratio \( 1:2 \) - \( Q \) divides \( AB \) in the ratio \( 2:1 \) ### Step 2: Find the coordinates of point \( P \) Using the section formula, the coordinates of point \( P \) that divides \( AB \) in the ratio \( 1:2 \) are given by: \[ P\left( \frac{m x_2 + n x_1}{m+n}, \frac{m y_2 + n y_1}{m+n} \right) \] where \( m = 1 \), \( n = 2 \), \( A(5, -6) = (x_1, y_1) \), and \( B(-3, 4) = (x_2, y_2) \). Substituting the values: \[ P\left( \frac{1 \cdot (-3) + 2 \cdot 5}{1 + 2}, \frac{1 \cdot 4 + 2 \cdot (-6)}{1 + 2} \right) \] Calculating the x-coordinate: \[ P_x = \frac{-3 + 10}{3} = \frac{7}{3} \] Calculating the y-coordinate: \[ P_y = \frac{4 - 12}{3} = \frac{-8}{3} \] Thus, the coordinates of point \( P \) are: \[ P\left( \frac{7}{3}, \frac{-8}{3} \right) \] ### Step 3: Find the coordinates of point \( Q \) Using the section formula again, the coordinates of point \( Q \) that divides \( AB \) in the ratio \( 2:1 \) are given by: \[ Q\left( \frac{m x_2 + n x_1}{m+n}, \frac{m y_2 + n y_1}{m+n} \right) \] where \( m = 2 \), \( n = 1 \). Substituting the values: \[ Q\left( \frac{2 \cdot (-3) + 1 \cdot 5}{2 + 1}, \frac{2 \cdot 4 + 1 \cdot (-6)}{2 + 1} \right) \] Calculating the x-coordinate: \[ Q_x = \frac{-6 + 5}{3} = \frac{-1}{3} \] Calculating the y-coordinate: \[ Q_y = \frac{8 - 6}{3} = \frac{2}{3} \] Thus, the coordinates of point \( Q \) are: \[ Q\left( \frac{-1}{3}, \frac{2}{3} \right) \] ### Final Answer The points of trisection of the line segment joining the points \( (5, -6) \) and \( (-3, 4) \) are: - \( P\left( \frac{7}{3}, \frac{-8}{3} \right) \) - \( Q\left( \frac{-1}{3}, \frac{2}{3} \right) \)
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