Mixed Practice Exponential Equations

What type of function is f(x)=2(1/7)^x ?

• Exponential Growth
• Linear
• Exponential Decay
• None of the Abovee

Write an equation that models the following situation:
Samantha's hair was known to grow very rapidly. It began at a length of 6 in and grew at a rate of 14% a week.

• y=6(0.14)^x
• y=6(1+14)^x
• y=6(1.14)^x
• y=6(0.86)^x

What type of function is y = 7(5/4)^x?

• Exponential Growth
• Exponential Decay
• Linear
• None of the above

Identify the y-intercept (initial value) in the function f(x)=13(.27)^x

• (.27)^x
• .27
• 13
• 3.51

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

• Growth
• Decay
• Linear
• None

Simplify the exponential expression.

• 2x⁶y¹²
• 2x⁵y⁷
• 8x⁶y¹²
• 8x⁵y⁷

Simplify the exponential expression:

• 10x^-2
• 2x²
• 2x¹²
• 10x¹²

The growth factor for this table is 

• 2
• 4
• 12
• 144

The equation for this table is 

• y = 1(2^x)
• y = 1(12^x)
• y = 12x
• y = 12x + 1

In an exponential function, what does the 'a' represent? 

• SLOPE
• RATE OF CHANGE
• Y-INTERCEPT
• COMMON RATIO