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Y NOTES verage cost function for the weekly manufacture of retro portable CD players is given by PRACTICE ANOTHER C(x) = 140,000x 1 + 30 + 0.0009x dollars per player, where x is the number of CD players manufactured that week. Weekly production is currently 4,000 players and is increasing at a rate of 500 players per week. What is happening to the average cost? (Round your answer to the nearest cent.) The average cost is ---Select--- | at a rate of $ per player per week. Need Help? Read It Watch It [-/11.11 Points] DETAILS WANEFMAC7 12.5.037. MY NOTES PRACTICE ANOTHER A point on the graph of y = _ is moving along the curve in such a way that its x-coordinate is increasing at a rate of 7 units per second. What is happening to the y-coordinate at the instant the y-coordinate is equal to 6? The y-coordinate is | ---Select--- > at a rate of units per second. Need Help? Read It Watch It