For the questions below, enter your answers using interval notation. You can use "U" to represent a "union", e.g. enter "(1,2) U (3,5)" for (1,2)∪(3,5)(1,2)∪(3,5). You can enter "oo" for ∞∞, e.g. enter "(-oo, oo)" for (−∞,∞)(-∞,∞).
What is the range of gg?