Exponential Functions Basics

In an exponential function, what is an interpretation of the y-intercept?

• 
  initial amount

• 
  ending amount

• 
  growth factor

• 
  decay factor

• A
  Growth
• B
  Decay
• C
  Both
• D
  Neither

Which function will show exponential behavior?
f(x) = (4.3)^x
g(x) = 4.3x + 9

• f(x)

• g(x)

• both

• neither

Is the pictured graph growth, decay, or linear or none?  

• Exponential Growth

• Exponential Decay

• Linear

• None

Which has a horizontal asymptote?

• Exponential

• Logarithmic

• Both

Which equation matches the graph?

• y = 2^x+3

• y = 2^x + 3

• y = 2^x

• y = 2^-x

Solve the equation for x.

• 7.389

• 0.693

• 0.0183

• 6.581

What is the Range of this function?

• y> 0

• x> 0

• All Real Numbers

• y= 1

In an exponential function, what does the 'a' represent?
f(x) = a ⋅ b^x

• Slope

• y -intercept

• x-intercept

• Common Ratio

In an exponential function, what does the 'b' represent?
f(x) = a ⋅ b^x

• Slope

• y -intercept

• x-intercept

• Common Ratio