Answer:
B,D,E
Step-by-step explanation:
The vertical line test states that a graph represents a function if and only if any vertical line through out its domain intersect the graph at most once.
Keeping in mind the above, we find that graph A vertical line cuts at all points. Hence not a function
B,D are E are functions since any vertical line cuts only once
C cannot be a function since at x=4 the vertical line cuts at 3 places of the graph.
So answer is
functions are
B, D and E
