V.1

Arithmetic or Geometric?

Identify arithmetic and geometric sequences and give the common difference or ratio.

Level

Medium

Level

Problems

Show exampleInclude answer key

@page { size: letter; margin: 0; } @media print { .ws-page + .ws-page { break-before: page; } } Daniel Math Academy \cdot Grade 8 Math Arithmetic or Geometric? Skill V.1 \cdot Arithmetic & geometric sequences \cdot ★★☆ Medium Name Date Score / 8 Scan for answers Write arithmetic (with d), geometric (with r), or neither. Example 3, 7, 11, 15, \dots : arithmetic, d = 4 2, 6, 18, 54, \dots : geometric, r = 3 Think: Arithmetic: the same number is added each time (the common difference d). Geometric: each term is multiplied by the same number (the common ratio r). 1 5, 10, 9, 14, \dots 2 11, 13, 15, 17, \dots 3 20, 21, 23, 26, \dots 4 3, 9, 27, 81, \dots 5 - 6, - 24, - 96, - 384, \dots 6 16, 11, 6, 1, \dots 7 - 2, 9, 20, 31, \dots 8 1, 2, 4, 8, \dots Daniel Math Academy \cdot danielmath.com Worksheet # 3m77c5z \cdot Page 1 / 2 Daniel Math Academy \cdot Grade 8 Math Answer Key V.1 Arithmetic or Geometric? \cdot ★★☆ Medium 1 neither 2 arithmetic, d = 2 3 neither 4 geometric, r = 3 5 geometric, r = 4 6 arithmetic, d = - 5 7 arithmetic, d = 11 8 geometric, r = 2 Daniel Math Academy \cdot danielmath.com Worksheet # 3m77c5z \cdot Answer Key \cdot Page 2 / 2

V. Arithmetic & geometric sequences3 skills