SOLUTION: Which of the following functions has a vertical asymptote at x =4 ? y = x−4−−−−√ y = 2x+4 y = 1x−4 y = (x−4)2

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Question 1179885: Which of the following functions has a vertical asymptote at x =4 ?
y = x−4−−−−√
y = 2x+4
y = 1x−4
y = (x−4)2
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
assuming you have:

y=sqrt%28x-4%29-> is asymptotic to x+=y%5E2%2B4

y=2x%2B4-> this is linear equation, so line doesn't have a vertical asymptote

y=+1%2F%28x-4%29->is asymptotic to x+=+4 and is asymptotic to y+=+0

y=%28x-4%29%5E2->is asymptotic to x=sqrt%28y%29


so, answer is: y+=+1%2F%28x-4%29-has a vertical asymptote at x+=4