Which relation is a function of x? х у
8-9
-8 2
1
1 2
х
-5
y
1
7
-5
2
-1
2
2.
3
Y у
7
-9
8
-4
X
-3
-2
Y у
-1
5
0

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