Question

zx-plane divides the line segment joining (2, 3, 1) and (6, 7, 1) in the ratio ______________.

Answer 1

Given points are (2, 3, 1) and (6, 7, 1)

Since zx-plane divides the line segment joining (2, 3, 1) and (6, 7, 1) in the ratio say K:1

Sine y co-ordinate is 0 for zx-plane

$$\begin{gathered} \mathrm{i}.\mathrm{e}\frac{3p+7}{p+1}=0 \\ \mathrm{i}.\mathrm{e}p=-\frac{7}{3} \end{gathered}$$

i.e ratio is 3:7 externally.