the coordinates of the endpoints of TU are T(2,4) and U(11,13) Point V is on TU and divides it such that TV:UV is 7:2

what are the coordinates of V
Write your answer as integers or decimals

1 answer

To find the coordinates of point V that divides segment TU in the ratio 7:2, we can use the section formula. The coordinates of point V can be calculated using the formula:

\[ V_x = \frac{m \cdot x_2 + n \cdot x_1}{m + n} \] \[ V_y = \frac{m \cdot y_2 + n \cdot y_1}{m + n} \]

where \( m \) and \( n \) are the parts of the ratio, and \((x_1, y_1)\) and \((x_2, y_2)\) are the coordinates of points T and U.

Given:

  • \( T(2, 4) \) and \( U(11, 13) \)
  • The ratio \( TV:UV = 7:2 \), so \( m = 7 \) and \( n = 2 \)

Now, substituting the values into the section formula:

  1. Calculate \( V_x \):

\[ V_x = \frac{7 \cdot 11 + 2 \cdot 2}{7 + 2} = \frac{77 + 4}{9} = \frac{81}{9} = 9 \]

  1. Calculate \( V_y \):

\[ V_y = \frac{7 \cdot 13 + 2 \cdot 4}{7 + 2} = \frac{91 + 8}{9} = \frac{99}{9} = 11 \]

Thus, the coordinates of point V are:

\[ V(9, 11) \]