Question

2. The monthly revenue, R, for a big tech company depends on the monthly advertising expenses, x, by the
function r(x)=1020x / 25+8, where the monthly revenue and advertising expenses are in thousands of dollars.
a) What should be the monthly advertising expenses if the company wants the monthly revenue (in $) to
exceed $20000?
b) What will happen to the amount of monthly revenue as monthly advertising expenses increase? Provide a
complete answer by providing details about the behaviour of the graph and numerical details about the monthly
revenue

Answer 1

(a) just use your r(x) to solve r(x) > 20,000
(b) since the slope is positive, r(x) increases as x increases