Question

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determine the location of a point (x, y, z) that satisfies the condition.
x > 0
the point is above the xy - plane.
the point is behind the yz - plane.
the point below the xy - plane.
the point is behind the xz - plane.
the point is in front of the yz - plane.
the point is in front of the xz - plane.

Explanation:

Step1: Understand 3 - D coordinate planes

In a three - dimensional coordinate system, the $yz$ - plane has the equation $x = 0$. Points with $x>0$ are on the side of the $yz$ - plane where $x$ values are positive. We call this the region in front of the $yz$ - plane.
Points above the $xy$ - plane have $z>0$, below have $z < 0$, in front of the $xz$ - plane have $y>0$ and behind have $y < 0$. But our condition is only about $x>0$.

Answer:

The point is in front of the $yz$-plane.