1) What is the common difference of the sequence -7, -4, -1, 2 ? a) -5 b) -3 c) 3 d) 5 2) What is the common difference of the sequence 21, 15,9, 3, -3 ? a) -6 b) -4 c) -3 d) -2 3) 7, _____, 13, 16, _____, _____, a) 9, 18,20 b) 10, 19, 23 c) 11,18, 20 d) 10,19,22 4) What is the formula in getting the nth term of an arithmetic sequence? a) a1= an+(n-1)d b) an= a1+(n-1)d c) an= a1+(n-1)d d) an= a1+(d-1)n 5) Find the 20th term of the arithmetic sequence if the first term is -2 and the common difference is 6. a) 78 b) 88 c) 92 d) 112

Arithmetic Sequence

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