Is it possible to get multiple correct answers for a mathematical expression? why or why not

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

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x