In which ratio and at which point does the $Y-$ axis divide the line segment joining $A(-2, 3)$ and $B(3, 0)$ from $A$?

Vedclass pdf generator app on play store
Vedclass iOS app on app store
(A) Suppose the $Y-$ axis intersects $\overline{AB}$ at point $P(0, y)$ and $P$ divides $\overline{AB}$ in the ratio $m:n$ from $A$.
Using the section formula for the $x-$coordinate:
$x = \frac{mx_2 + nx_1}{m+n}$
Since $P$ lies on the $Y-$ axis,its $x-$coordinate is $0$.
$0 = \frac{m(3) + n(-2)}{m+n}$
$0 = 3m - 2n$
$3m = 2n \implies \frac{m}{n} = \frac{2}{3}$
So,the ratio is $2:3$.
Now,find the $y-$coordinate of $P$ using the ratio $m=2$ and $n=3$:
$y = \frac{my_2 + ny_1}{m+n}$
$y = \frac{2(0) + 3(3)}{2+3} = \frac{9}{5}$
Thus,the point of division is $(0, 9/5)$ and the ratio is $2:3$.

Explore More

Similar Questions

Find the coordinates of the point which divides $\overline{AB}$ in the ratio $3:2$ from $A$. The coordinates of $A$ and $B$ are $(3, 2)$ and $(-2, -5)$ respectively.

If the distance between $A(-4, -3)$ and $B(6, a)$ is $10$,then $a = \ldots \ldots \ldots . . .$

Two vertices of a triangle are $(3, -5)$ and $(-7, 4)$. If the centroid of the triangle is $(2, -1)$,then find the coordinates of the third vertex.

State whether the following statement is true or false. Justify your answer.
Point $P (0, -7)$ is the point of intersection of the $y$-axis and the perpendicular bisector of the line segment joining the points $A (-1, 0)$ and $B (7, -6)$.

State whether the following statement is true or false. Justify your answer.
Point $P(0, 2)$ is the point of intersection of the $y$-axis and the perpendicular bisector of the line segment joining the points $A(-1, 1)$ and $B(3, 3)$.

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo