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Exponential Functions Review
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What does the "b" value tell us in an exponential equation?
Growth (increasing) / Decay (decreasing)
What does the "a" value tell us in an exponential equation?
Positive/negative
What is the equation for the graph given the 2 points
y= 5 x 4^x
Write the equation for the graph given 2 points
y=18 x (1/3)^x
What is the equation for a word problem when it is a decay graph?
f(t)=a(1-r)^t
What is the equation for a word problem when it is a growth graph?
f(t)=a(1+r)^t
What does decay mean?
The graph is decreasing
What does growth mean?
The graph is increasing
Name two points on the graph
Answer vary
Name two points on the graph
Answer vary
Write the equation for the graph
y=(1/4) x (1/3)^x
Write the equation for the graph
y=4x(2)^x
Write the equation for the graph
y=2x(3)^x
Write the equation for the graph
y=2x(1/x)^x
Sketch the graph of the function
positive/decreasing
Sketch the graph of the function
positive/increasing
Sketch the graph of the function
Positive/increasing
Sketch the graph of the function
Positive/decreasing