Key Features of Exponential Functions

What is the range of this graph?

• y = 6
• (0, -4)
• y > -6
• y < -6

What is the range of this function?

• -∞< y < 0

• 0< y <∞

• -∞< y <4

• 4< y <∞

Given y=3^x determine the y-intercept 

• (0,1)
• (0,3)

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

• (.27)^x
• .27
• 13
• 3.51

Identify the y-intercept (initial value) of the function f(x)=2(4)^x.

• 2
• 4
• (2)^x
• 8

Identify the factor of the function f(x)=2(4)^x.

• 2

• 4

• (2)^x

• 8

Identify the y-intercept (initial value) of the function f(x)=2(4)^x.

• 2
• 4
• (2)^x
• 8

Given the function, f(x) = 6.5(0.85)^x, identify the initial value.

• 6.5
• 0.85
• x
• f(x)

Given the function, f(x) = 6.5(0.85)^x, identify the growth/decay factor.

• 6.5

• 0.85

• x

• f(x)

What is the y-intercept of the function?

• 2
• 3
• 1
• -2