To conduct an experiment, the room temp in a lab needs to be as close as possible to -2 degrees Celsius. Any variation from its target temp, whether warmer or cooler, is considered an error that could affect the experiment. Function v gives absolute temp error as a function of the room temp in degrees Celsius, x.

Select all the statements that are true about the function and the situation.

A. When the room temp is 0 degrees Celsius, v(0) has a value of 2
B. When the room temp is -3 degrees Celsius, the absolute temp error, v(-3) is -1
C. When the room temp is 3 degrees Celsius, v(3) is 5
D. The equation v(x) = | x + 2 | gives the absolute temp error when the room is degrees Celsius
E. When v(x) = 0.5, the room temp could be -1.5, or -2.5 degrees Celsius
F. The equation v(x) = | x + 2 | gives us the absolute temp error when the room temp is x degrees Celsius