A company's revenue from selling x units of an item is given as R = 1000x - x^2?. If sales are increasing at the rate of 35 units per day, how rapidly is revenue increasing (in dollars per day) when 470 units have
been sold?

x= -3

step-by-step explanation:

step 1: simplify brackets

4 - x - 1 = 6

step 2: simpilfy

3 - x = 6

step 3: subtract 3 from both sides

-x = 6 - 3

step 4: simpilfy 6 - 3

-x = 3

step 5: multiply both sides by -1

x = -3

step-by-step explanation:

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