Find detailed and accurate answers to your questions on IDNLearn.com. Get accurate and timely answers to your queries from our extensive network of experienced professionals.

Segment AB with endpoints at A(3,2) and B(3,16) is partitioned by point P according to the ratio of 2:5.

Find the coordinate of point P.

A. (3, 4)
B. (3, 6)
C. (3, 12)
D. (3, 14)


Sagot :

To find the coordinates of point P that partitions the segment AB in the ratio of 2:5, we use the section formula. The section formula for the coordinates of point P dividing the line segment joining points [tex]\((x_1, y_1)\)[/tex] and [tex]\((x_2, y_2)\)[/tex] in the ratio [tex]\(m:n\)[/tex] is given by:

[tex]\[ \left( \frac{mx_2 + nx_1}{m + n}, \frac{my_2 + ny_1}{m + n} \right) \][/tex]

Given:
- Point A has coordinates [tex]\( (x_1, y_1) = (3, 2) \)[/tex]
- Point B has coordinates [tex]\( (x_2, y_2) = (3, 16) \)[/tex]
- The ratio [tex]\( m:n \)[/tex] is [tex]\( 2:5 \)[/tex]

First, calculate the x-coordinate of point P:

[tex]\[ Px = \frac{m \cdot x_2 + n \cdot x_1}{m + n} \][/tex]

Substitute the given values:

[tex]\[ Px = \frac{2 \cdot 3 + 5 \cdot 3}{2 + 5} = \frac{6 + 15}{7} = \frac{21}{7} = 3 \][/tex]

Now, calculate the y-coordinate of point P:

[tex]\[ Py = \frac{m \cdot y_2 + n \cdot y_1}{m + n} \][/tex]

Substitute the given values:

[tex]\[ Py = \frac{2 \cdot 16 + 5 \cdot 2}{2 + 5} = \frac{32 + 10}{7} = \frac{42}{7} = 6 \][/tex]

Therefore, the coordinates of point P are [tex]\( (3, 6) \)[/tex].

Among the given choices:
1. (3,4)
2. (3,6)
3. (3,12)
4. (3,14)

The correct answer is: (3,6).