What are contour lines?
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Answer:
a line on a map joining points of equal height above or below sea level.
Explanation:
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Answer:
a line on a map joining points of equal height above or below sea level.
Explanation:
A contour line of a function of two variables is a curve along which the function has a constant value, so that the curve joins points of equal value. It is a plane section of the three-dimensional graph of the function f parallel to the-plane.
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