Question

Describe the vertical asymptote(s) and hole(s) for the graph of y = ( x + 2)(x + 4)/(x + 4)(x + 1)

Answer 1

The page may be very useful to you.

Again, vertical asymptotes will come from finding where the denominator is equal to 0.

Holes come from when numerator and denominator have the same expression. In your case (x+4) is in both top and bottom.