The three words or phrases used in real life that indicate negative numbers

Sketch one cycle if the cosine function y=2cos2theta

Suppose that a households monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, hcf). when graphed, the function gives a line with slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?

Identify the number 127 as a rational or irrational. explain