11. A set of weights includes a 5 lb bar and 8 pairs of weight plates. Each pair of plates weighs 10 lbs. If x
pairs of plates are added to the bar, the total weight of the bar and plates and plates in pounds can be represented
by f (x) = 10x + 5.
What does x represent in this situation?
What does f (x) (remember f (x) = y) represent in this situation?
What is a reasonable domain and range for this situation?
D:
R:
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