Question

In the symmetric or Cartesian form \[\frac{x-x_1}{a}=\frac{y-y_1}{b}=\frac{z-z_1}{c}\], the direction ratios are:

Options

• \[(x-x_1,y-y_1,z-z_1)\]

• \[(a,b,c)\]

• \[(a+x_1,b+y_1,c+z_1)\]

• \[(x_1,y_1,z_1)\]

Answer 1

In symmetric form, denominators give direction ratios. Therefore, the direction ratios are \[(a,b,c)\].