Select the lines that represent functions

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

step-by-step explanation:

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