Geometric Sequences and Exponential Functions Flashcards
1
Q
What is the explicit rule for a geometric sequence?
A
f(n)= f(1) * r ^ n-1
2
Q
What is the recursive rule for geometric sequence?
A
f(1) _ f(n)-f(n-1) * r n greater or equal to 2
3
Q
What is vertical stretch?
A
a > 1
4
Q
What is vertical compression ?
A
a < 1
5
Q
What is the exponential function?
A
f(x) = ab^x
6
Q
What letter is the initial value/x=0/ y-intercept in an exponential function?
A
a
7
Q
What letter is the common ratio for an geometric sequence ?
A
b
8
Q
What letter is the exponent in an exponential function?
A
^x
9
Q
Does this formula show exponential growth or decay?
y= a ( 1+r )^t
A
exponential growth
10
Q
Does this formula show exponential growth or decay?
y= a (1-r ) ^t
A
exponential decay
11
Q
What word means going down in value?
A
depreciating
12
Q
What word means going up in value?
A
appreciating
