the consumer price index (cpi), which measures the cost of a typical package of consumer goods, was 228.6 in 2011 and 241.8 in 2016. let x= 11 correspond to the
year 2011 and estimate the cpi in 2012 and 2013. assume that the data can be modeled by a straight line and that the trend continues indefinitely. use two data points
to find such a line and then estimate the requested quantities.
let y represent the cpi. the linear equation that best models the cpi is .
(simplify your answer. use integers or decimals for any numbers in the equation. round to the nearest hundredth encoded

Asystem of linear equations with more equations than unknowns is sometimes called an overdetermined system. can such a system be consistent? illustrate your answer with a specific system of three equations in two unknowns. choose the correct answer below. a. yes, overdetermined systems can be consistent. for example, the system of equations below is consistent because it has the solution nothing. (type an ordered pair.) x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 6 b. no, overdetermined systems cannot be consistent because there are fewer free variables than equations. for example, the system of equations below has no solution. x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 12 c. yes, overdetermined systems can be consistent. for example, the system of equations below is consistent because it has the solution nothing. (type an ordered pair.) x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 8 d. no, overdetermined systems cannot be consistent because there are no free variables. for example, the system of equations below has no solution. x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 24