### Home > CC4 > Chapter 8 > Lesson 8.1.4 > Problem8-65

8-65.
1. Tickets for a concert have been in incredibly high demand, and as the date for the concert draws closer, the price of tickets increases exponentially. The cost of a pair of concert tickets was $150 yesterday, and today it is$162. As you complete the parts below, assume that each day’s percent increase from the day before is the same. Homework Help ✎

1. What is the daily percent rate of increase? What is the multiplier?

2. What will be the cost of a pair of concert tickets one week from now?

3. What was the cost of a pair of tickets two weeks ago?

4. What will be the cost of a pair of tickets two weeks from now? Does your answer make sense? Why or why not?

What percent of $150 is$162?

Construct a table of values or an equation describing the relation
between the number of days since yesterday and the price of a ticket.

In order to go backwards, make the exponent negative.
Remember exponential equations look like this, y = a bx where a is initial value, b multiplier and x is time.

Time in the equation is in days, the problem gives you weeks. What do you do?