Please answer quickly

Which values of p and q result in an equation with exactly one solution? px-43=-42x+q choose all answers that apply: a) p=-43 and q=-43 b) p=42 and q=43 c) p=43 and q=−42 d) p=42 and q=42

Which term below correctly completes the following sentence? if a function has a vertical asymptote at a certain x value, then the function is what at that value

I’m really confused and need to learn this