In Problem use a graphing calculator as necessary to explore the graphs of the indicated cross sections.

(A) Describe the cross sections of the surface z = f(x, y) produced by cutting it with the planes y = 1, y = 2, y = 3, y = 4, and y = 5.

(B) Describe the cross sections of the surface in the planes x = 0, x = 1, x = 2, x = 3, x = 4, and x = 5.

(C) Describe the surface z = f(x, y).

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Let f(x, y) V36x² - y²