### Home > PC > Chapter 8 > Lesson 8.1.3 > Problem 8-46

8-46.

Recall that an exponential function, with the

*x*-axis as an asymptote, can be expressed as*y*=*a*·*m*^{x}^{ }where*a*is the initial value and*m*is the multiplier. Find the initial value, the multiplier, and the time units in each of the following situations. Homework Help ✎Bread costs $1.87 now and is increasing in price by 2% each month.

A car is worth $12000 now and is depreciating in value by 12% each year.

Bacteria grows at a rate of 30% every hour. There are currently 1000.

A $5000 investment earns 1% interest every month.

Initial value = $1.87, multiplier = 1 + 0.02 = 1.02 , time is in months.

Multiplier will be down 0.12 from 1.0.