Posted by **bordo** on Sunday, April 8, 2012 at 12:42pm.

1)Which of the following results in the graph of f(x) = x2 being expanded vertically by a factor of 4? the answer is

f(x) = 4x2. can you explain how.

2)Which is true for the graph of y=(x^2-9)/(x^2-4). the answer is vertical asymptotes at x = ±2 . please explain.

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