Problem using asymptotes?

Question

An Atlanta marketing agency figures that the monthly cost of a billboard advertising campaign depends on the fraction of the market p that the client wishes to reach. For 0 is less than or equal to p is less than 1 the cost in dollars is determined by the formula

C = (4p - 1200)/(p - 1)

What is the monthly cost for the campaign intended to reach 95% of the market? Graph this function for 0 less than or equal to p is less than 1. What happens to the cost for a client who wants to reach 100% of the market?

Answer 1

If p= .95, we have 3.8 - 1200 / (.95-1) appx 24000. Your cost function looks suspect, since it is nearly 1200/(1-p) for p#1. At very low p, C approaches 1200, and for very high p, the function "takes off" since 1-p approaches 0. Thus a 100% reach would take an indetermible (and huge) investment.