A) parallel to yz-plane
B) parallel to zx-plane
C) perpendicular to z-axis
D) parallel to z-axis
Correct Answer: C
Solution :
\[\frac{x-2}{3}=\frac{y-3}{4}=\frac{z-4}{0}\] Taking first and third terms \[\frac{x-2}{3}=\frac{z-4}{0}\] \[\Rightarrow \] \[z-4=0\] \[\Rightarrow \] \[z=4\] Hence, given line is perpendicular to z-axis.
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