Amathematical sentence which contains an inequality symbol and one variable raised to the first power is called a inequality.

example: x + 3 ≤ 5

What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1