Exponential Functions

What is the Y-Intercept?

• 1

• -2

• 3

• 2

Is this graph showing an exponential GROWTH, DECAY, or NEITHER

• DECAY

• GROWTH

• NEITHER

Tony purchased a rare 1959 Gibson Les Paul guitar for $12,000. Experts estimate that its value will increase by 14% per year. What is a function to model the growth in value for this guitar?

• f(x)=1.14(12000)^x

• f(x)=12000(.14)x

• f(x)=.14(1.14)¹²

• f(x)=12000(1.14)^x