Question

In which years was Amtrak's passenger revenue $790 million, based on the given formula R = 40|x + 11| + 900?

a) 1983 and 1991
b) 1987 and 1999
c) 1982 and 1990
d) 1985 and 1993

Answer 1

There are no years in which Amtrak's passenger revenue was $790 million based on the given formula.

Step-by-step explanation:

To find the years in which Amtrak's passenger revenue was $790 million, we can set up and solve the equation:

40|x + 11| + 900 = 790

Subtracting 900 from both sides, we get:

40|x + 11| = -110

Dividing both sides by 40, we get:

|x + 11| = -2.75

Since the absolute value of a number cannot be negative, there are no solutions to this equation.