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# A point is on $x-axis$. What are its $y-coordinate$ and $z-coordinate?$

$\begin{array}{1 1}\text{both zero } \\ \text{Any real number } \\ \text{Any real number other than zero} \\ \text{cannot say}\end{array}$

Any point on $x-axis$ will have both the $y\:and\:z$ coordinate as zero.
That is it will be of the form $(x,0,0)$