Suppose that average annual income (in dollars) for the years 1990 through 1999 is given by the linear function x) - 1097x + 21,117, where x is the number of years after 1990. Which of the following...

Extracted text: Suppose that average annual income (in dollars) for the years 1990 through 1999 is given by the linear function x) - 1097x + 21,117, where x is the number of years after 1990. Which of the following interprets the slope in the context of the problem? C As of 1990, average annual income was $21,117. O Each year in the decade of the 1990s, average annual income increased by $1097. O Average annual income rose to a level of $21,117 by the end of 1999. O In the ten-year period from 1990-1999, average annual income increased by a total of $1097. Additional Materials elook Linear Functions Interpreting a Linear Function