Meaning / Rules
What notation do we use for the first term?
Notation for common difference?
f(1) / d
-7, -12, -17, -22, ...
What is arithemtic
Find f(8) given f(1)=9 and d=2
Identify the d (common difference) in the arithmetic sequence formula:
f(n)=7(n-1) - 4
What is 7
What notation do we use for the 10th term
f(10)
2,6,10,16,22,26
Not Arithmetic
-8, -3, 2, 7, 12
What is 5
Find f(3) given f(1)= -40 and d = 55
f(3) = 70
Identify the f(1) in the arithmetic sequence formula: f(n)=4(n-1) - 5
What is -5
Create the explicit rule for the sequence:
-3, 1, 5, 9, ...
f(n)= 4(n-1) - 3 OR f(n)= 4n - 7
4.25,4.55,4.85,5.15,5.45
Arithmetic
find the 8th term of the sequence :
f(n) = 10(n-1) - 8
What is 62
Find the next 3 terms : 7,3,-1,-5
-9, -13, -17
Create the recursive rule for the sequence :
-5, -8, -11, -14, ...
f(1) = -5
f(n) = f(n-1) - 3
4,8,16,32,64
Geometric
Find the 12th term of the sequence :
f(n) = -3n - 4
f(12) = -40
Find the 5th term of a sequence with f(1)= -70 and d=-5
What is f(n)= -70 - 5(n-1)
f(5) = -90
Find the first 4 terms of this sequence :
f(n) = -17n + 12
f(1), f(2), f(3), f(4)
-5, -22, -39, -56
3/4, 1, 5/4, 3/2, 7/4, 2
Arithmetic
4.5, 3.75, 3, 2.25, 1.5
What is -0.75
Find the first 4 terms : f(1), f(2), f(3), f(4)
f(n) = -12n + 25
13, 1, -11, -23
Find f(20) given the formula: f(n)= -20 - 4(n-1)
What is -96