Math Comic Strip

Math Comic Strip
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  • Not Great. We're learning about Arithmetic Sequences in math and I'm so confused!!
  • Kaffmandu
  • I love Arithmetic Sequences!! Let me help you!!
  • Hey Allie!! How are you doing?
  • I don’t know how to determine if a sequence is an arithmetic sequence, let alone how to determine the pattern of one.
  • Ok, well, you need to find the common difference of the pattern
  • The common difference? What does that mean?
  • 4,6,8,10
  • a1,a2...
  • Mrs. Noftle
  • d = 6-4 =2 d = 8-6 =2 d = 10-8 =2
  • The common difference is the pattern between the numbers in an arithmetic sequence. So, if we have a sequence of numbers such as 4,6,8,10, we’d take the 2nd number and subtract the 1st number.
  • d= Common Difference d= a2 - a1
  • It is an Arithmetic Sequence.
  • 4,6,8,10
  • a1,a2...
  • The common difference would not be the same throughout. The common difference has to be the same for it to be an arithmetic sequence.
  • So the common difference of this sequence of numbers would be 2 because the common difference is the same throughout.
  • So, then how would we determine if it isn’t an arithmetic sequence?
  • d = 6-4 =2 d = 8-6 =2 d = 10-8 =2
  • d= Common Difference d= a2 - a1
  • It is an Arithmetic Sequence.
  • 4,7,10,14
  • Mrs. Noftle
  • Oh Ok!
  • d = 7-4 =3 d = 10-7 =3 d = 14-10 =4
  • Well, the common difference is 3 between the first two sets of numbers but not the third, so it isn't an arithmetic sequence.
  • Here you try. Your sequence of numbers are 4,7,10,14.
  • It is NOT an Arithmetic Sequence.
  • 4,7,10,14
  • Mrs. Noftle
  • d = 7-4 =3 d = 10-7 =3 d = 14-10 =4
  • Oh ok, that's not so bad! They’re pretty fun actually!
  • It is NOT an Arithmetic Sequence.
  • Exactly! See you got it!!
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