Select ALL the correct answers. Which graphs represent functions with the following key features?
• positive on (-♾,♾)
• Increasing on (-♾,♾)
approaches 0 as x approaches -♾
y
1
у
A
y
4
4
2
2
2
4
X
X
+
-4
-7
4
4
-4
-2.
2.
4
2
+2
+2
4
Graph U
Graph V
Graph w
у
у