Amtrak's annual passenger revenue for the years 1985−19951985-1995 is modeled approximately by the formula R=−60|x−11|+962 where RR is the annual revenue in millions of dollars and xx is the number of years after 19801980. In what year was the passenger revenue $722$722 million? In the years  and , the passenger revenue was $722 million.

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Q: grade

A: The answer is given below :

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A: a) 1 year = 365 days.

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A: Here the value of car  is given V = 25000-2100n After 5 year then n = 5

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A:

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.