4, 5] state the horizontal asymptote of the rational function. f(x) = quantity x plus nine divided by quantity x squared plus two x plus three.

the denominator polynomial has a higher degree than the numerator polynomial, so it will get large faster for large values of x. the result will tend to zero. hence the appropriate choice is

y = 0

the numerator changes sign at x=-9, but the denominator is always positive. hence the quotient will be negative for x < -9 and will be positive for x > -9. that is, the asymptote will be approached from below on the left, but from above on the right.

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads

correct answer:

b.(19,-2)