Question

Name the octant in which the point lie: $(2,-5,-7)$

Answer 1

Given: point $(2,-5,-7)$

In this case, since $x-$ coordinate is positive and $y,z-$ coordinates are negative of a given point then octant will be $OX{Y}^{\prime }{Z}^{\prime }$.

$\therefore$ Given point is in $OX{Y}^{\prime }{Z}^{\prime }$ octant.