Skip to main content\(\newcommand{\R}{\mathbb{R}}
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A three dimensional plot of a tilted plane drawn in green. The plane is parallel to the y-axis and increases in the z coordinate when the x coordinate is decreased. A red arrow is drawn perpendicular to the green plane, starting at the point on the plane labeled
\(P_0\text{.}\) An orange arrow on the plane goes from the point labeled
\(P_0\) to another point on the plane that is labeled
\(Q\text{.}\)