Comparing Exponential Functions

Is the graph in the picture a quadratic, exponential, linear or neither function?

• Exponential

• Quadratic

• Linear

• Neither

Is this exponential growth or decay?

• Growth

• Decay

Which represents exponential decay?

• A

• B

• C

• D

As x → ∞ , f(x) →

• -4

• -3

• ∞

• -∞

Consider the equation 70(0.8)^x + 2. What is the equation of the asymptote?

• y = 70

• y = 0.8

• y = 2

• y = 0.2

What is the y-intercept of the function?

• (0,2)

• (0,3)

• (0,1)

• (0,-2)

What type of function is this equation:
y=  3(4)^x

• Linear

• Exponential

• Neither

Your financial advisor presents you with four plans for retirement as follows. All dollar amounts are given in millions of dollars. For example, 0.025 million is really $25,000. Which retirement plan has the highest growth rate?

• Plan A

• Plan B

• Plan C

• Plan D

The iPhone X is valued at $1000 upon purchase. The value is expected to decrease by 14% each year. What type of function is this?

• Linear 

• Exponential 

• Neither 

What is the exponential decay factor for Austin's car?

• (.88)

• (.91)

• (.12)

• (.09)