Algebra Exponential

What is a, the starting (initial) value, for the function: f(x) = 300(1.16)^x?

• 300

• 1.16

• .16

• x

Classify the model as Exponential GROWTH or DECAY.

A=10(1.21)³

• Growth

• Decay

Is this exponential growth or decay?

• Growth

• Decay

Write an equation

• y = (20)0.25^x

• y = (20)0.5^x

• y = (0.5)20^x

The table contains some points on a graph of an exponential function. Based on the table, which function represents the same relationship?

• f(x) = 3(4)^x

• f(x) = 2(4x)

• f(x) = 4(.02)^x

• f(x) = 2(4)^x

Which function represents the same relationship?

• f(x) = 15(5/6)^x

• f(x) = 18(6/5)^x

• f(x) = 15(6/5)^x

• f(x) = 18(5/6)^x

Given the following table of values, construct the function that represents the sequence.

• y = 3(4)^x

• y = 3x + 4

• y = sqrt(3)

• y = 4x + 3

Label the parts of the Exponential Function Form.

a

b

c

growth or decay factor

number of repititions

y-intercept, the initial value

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

• (.27)^x

• .27

• 13

• 3.51