Question

6. Read the para ‘Contour Lines' on pag
comment on it.​

Answer 1

Answer:

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.

Answer 2

Explanation:

contour line (also isoline, isopleth, or isarithm) 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.[1][2] It is a plane section of the three-dimensional graph of the function f(x, y) parallel to the (x, y)-plane. In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level.[3] A contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.[4] The contour interval of a contour map is the difference in elevation between successive contour lines.[5]