Question: Write each formula using the language of variation. For example, the formula for the circumference of a circle, C = 2r, can be written as

Write each formula using the “language” of variation. For example, the formula for the circumference of a circle, C = 2πr, can be written as

“The circumference of a circle varies directly as the length of its radius.”

S = 4πr2, where S is the surface area of a sphere with radius r

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