133. Water in a Swimming Pool The line graph represents the gallons of water Win a small swimming pool after x hours. a. Evaluate W(4) and interpret your result. b. Determine the domain D of function W and explain what it represents. c. Determine the range R of function W and explain what it represents. 2000 1750 y = W(x) - 1500 1250 1000 750 500 250 0 1 3 5 6. Time (hours) Water (gallons) 4.

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