What are the limitations of the ski slope scenario as a real life example

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

10x − 5y + 14 = 0 whats the answer pls

What are two numbers that add up to -9 and multiply to -10 best answer gets branliest and 100 extra points