Find the vertical asymptotes of the function. y = x2 + 2 7x - 4x2

The vertical asymptotes are found where the denominator = 0. If we factor out an x we will have x (-4x + 7). Therefore, x cannot equal 0 and - 4x + 7 cannot equal 0, and - 4x cannot equal - 7, and x cannot equal 7/4. So the V. A. are 0 and 7/4