What is the sign of \dfrac {-x}{-y} −y
−x

start fraction, minus, x, divided by, minus, y, end fraction when x>0x>0x, is greater than, 0 and y>0y>0y, is greater than, 0?
Choose 1
Choose 1

(Choice A)
A
Positive

(Choice B)
B
Negative

(Choice C)
C
Zero

The customer price index(cpi), which measures the cost of a typical package of customer goods,was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely.use data points to find such a line and then estimate the requested quantities