Which graph represents the function f(x) = -x + 31?
7
32
--3-2-11- 12345
774
·N W/49
-5-4-3-2-1₁ 1 2 3 4 5 x
5
4
3+
2
-5-4-3-2-11-
+2+
-5-4-3-2-1₁