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QUESTION 1 What is a sequence? 0 the sum of a pattern of numbers 0 the results from Pascal's triangle 0 an ordered list of numbers O a row of stars and bars QUESTION 2 A recursive denition for a sequence 0 an equation relating a term of a sequence to its position ll'l the sequence 0 an equation relating a term of a wquence to previous terms 0 none of the answers 0 an equation relating a term of a sequence to the common factor or common difference QUESTION 3 What is the closed formula for the sequence 1' 3, 6, 10' 15,21, 0 l + n(2n71) O l + nh'nl! O n(n+1)12 O 2n|,171 QUESTION 4 What is the closed formula for an arithmetic sequence starting at a with a common difference of d? 0 an = an_1 + d 0 none of the answers 0 an = dan_1 0 an: a+dn QUESTION 5 What is the recursive formula for a geometric sequence? 0 an:an4 +r 0 an : arn_1 0 an = arrI 0 an : ran_1 QUESTION 6 What is the sum of the sequence of 100 terms that start with 8 and add 6 each time? QUESTION 7 To sum a geometric sequence you would 0 multiply the sequence by the common ratio, subtract it from the original sequence 0 reverse and add 0 multiply the sequence by the common difference, shift and add 0 none of the answers QUESTION 8 Triangle numbers 0 are a sequence of partial sums 0 all of the answers 0 for equilateral triangles when arranged in a triangular shape