Answer:
i)
Step-by-step explanation:
i) you can't divide by 0 and when you put x=5 into the bottom part 4x-20 = 4(5)-20 = 20-20 = 0 so x cannot be 5. So the domain is x > 5 and x < 5 OR in other words, when x is not 5.
ii) substitute y=0 into the equation and solve the quadratic on top
iii) substitute x=0 into the equation and write down the value
horizontal asymptote at x=5 because we found out that x cannot be 5 in part i)