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Arithmetic and Geometric Sequences
Speed Match Review Game

This game has been played 2 times
The best time ever was Will at 264 seconds.
The best time today is at seconds.
How To Play:
Drag the squares in the gray area and drop them in the matching squares in the blue area below.
If you drop a square in the correct spot, it will disappear.
If you make a mistake, the square will return to its original spot.
Good luck!

Let's Play Speed Match!

a(n)=8+(n-1)(-6)
80
a(1)=-4 a(n)=a(n-1)+2
a(1)=10 a(n)=a(n-1)-3
30, 21, 12, 3, -6
d=7
a(n)=-6+(n-1)(5)
-121
7, 13, 19, 25, 31
280
a(1)=3 a(n)=2a(n-1)
96, 48, 24, 12, 6
a(n)=19+(n-1)(9)
1, -8, 64, -512, 4096
-166
a(n)=-7+(n-1)(-3)
-4, -16, -64, -256, -1024
a(1)=80 a(n)=1/2a(n-1)
a(1)=-2 a(n)=-5a(n-1)
d=-11
a(n)=5+(n-1)(-4)
139
r=-4
r=1/3
r=3
5, 1, -3, -7, -11
-6, -1, 4, 9, 14
19, 28, 37, 46, 55
-2, 10, -50, 250, -1250
a(1)=30 a(n)=a(n-1)-9
8, 2, -4, -10, -16
a(1)=1 a(n)=-8a(n-1)
a(1)=7 a(n)=a(n-1)+6
19, 28, 37, 46, 55
80, 40, 20, 10, 5
1701, 567, 189, 63, 21, 7
-7, -4, -1, 2, 5
3, 6, 12, 24, 48
10, 7, 4, 1, -2
5, 15, 45, 135, 405, 1215
8, 2, -4, -10, -16
24, 13, 2, -9, -20, -31
-6, -1, 4, 9, 14
a(1)=-4 a(n)=4a(n-1)
-4, -2, 0, 2, 4
3, -12, 48, -192, 768, -3072
-7, -4, -1, 2, 5
5, 1, -3, -7, -11
5, 12, 19, 26, 33, 40
a(1)=96 a(n)=0.5a(n-1)

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Here are all the answers:

DescriptionMatch:
5, 12, 19, 26, 33, 40d=7
24, 13, 2, -9, -20, -31d=-11
5, 15, 45, 135, 405, 1215r=3
3, -12, 48, -192, 768, -3072r=-4
1701, 567, 189, 63, 21, 7r=1/3
a(1)=7 a(n)=a(n-1)+67, 13, 19, 25, 31
a(1)=30 a(n)=a(n-1)-930, 21, 12, 3, -6
a(1)=-4 a(n)=4a(n-1)-4, -16, -64, -256, -1024
a(1)=1 a(n)=-8a(n-1)1, -8, 64, -512, 4096
a(1)=96 a(n)=0.5a(n-1)96, 48, 24, 12, 6
-4, -2, 0, 2, 4a(1)=-4 a(n)=a(n-1)+2
10, 7, 4, 1, -2a(1)=10 a(n)=a(n-1)-3
3, 6, 12, 24, 48a(1)=3 a(n)=2a(n-1)
-2, 10, -50, 250, -1250a(1)=-2 a(n)=-5a(n-1)
80, 40, 20, 10, 5a(1)=80 a(n)=1/2a(n-1)
-7, -4, -1, 2, 5a(n)=-7+(n-1)(-3)
5, 1, -3, -7, -11a(n)=5+(n-1)(-4)
19, 28, 37, 46, 55a(n)=19+(n-1)(9)
-6, -1, 4, 9, 14a(n)=-6+(n-1)(5)
8, 2, -4, -10, -16a(n)=8+(n-1)(-6)
-7, -4, -1, 2, 580
5, 1, -3, -7, -11-121
19, 28, 37, 46, 55280
-6, -1, 4, 9, 14139
8, 2, -4, -10, -16-166