Which of the following is the best definition of a vertical asymptote?

A. A horizontal line that the graph of a function approaches but never intersects
B. A vertical line that the graph of a function approaches but never intersects
C. A vertical line that the graph of a function approaches and intersects
D. A horizontal line that the graph of a function approaches and intersects

Question

Which of the following is the best definition of a vertical asymptote?

 		A.	A horizontal line that the graph of a function approaches but never intersects
 		B.	A vertical line that the graph of a function approaches but never intersects
 		C.	A vertical line that the graph of a function approaches and intersects
 		D.	A horizontal line that the graph of a function approaches and intersects

usukidoll · Answer

it's like... a space... it doesn't connect... it's like an upside down volcano with a line that goes  up and down.

usukidoll · Answer

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usukidoll · Answer

|dw:1434256030207:dw| ok that dashed line is not drawn well. but a vertical asymptote is a vertical line which corresponds to the zeros of the denominator of a rational function... 

the dashed line is the area where you don't graph . the domains are restricted.