The cost, C, of a diamond is directly proportional to the square of its weight, w (in carats).
If a 1-carat diamond costs 8,500 dollars, find the cost, in dollars, of a 4-carat diamond.

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The Answer of The cost, C, of a diamond is directly proportional to the square of its weight, w (in carats).
If a 1-carat diamond costs 8,500 dollars, find the cost, in dollars, of a 4-carat diamond.

The Cost, C, of a Diamond Is Directly Proportional to the Square