Question

Read the para 'Contour Lines of page 5 and comment on it.
A Contour line of a function of two variables is a curve along which the function has a constant value.In
cartography a Contour line joins points of equal elevation above a given level such as mean sea level.
Contour lines are carved, straight or a mixture of both lines on a map describing intersection of
a real surface with one or more horizontal plains.

Answer 1

Answer:

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Explanation:

A contour line of a function of two variables is a curve along which the function has a constant value in Cartography, a contour line joins points of equal elevation above a given level, such as mean sea level. contour lines are curved, straight or a mixture of both lines on a map describing the intersection of a real surface with one or more horizontal plains

Answer 2

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.