Arithmetic and Geometric Sequences Review with Explicit Formulas

Determine whether the sequence in the table is arithmetic, geometric, or neither.

• arithmetic

• geometric

• neither

Determine whether the sequence in the table is arithmetic, geometric, or neither.

• arithmetic

• geometric

• neither

Common difference or ratio?

What are the missing values?

• Difference = 22, 34

• Difference = 24, 34

• Ratio = 22, 34

• Ratio = 24, 34

Complete the table by looking for the pattern.

• 30, 10, 3.3, 1.1

• 30, 10, 3, 0

• 60, 30, 10, 0

Write the explicit formula (u_n) for the geometric sequence.

• Un = 162(2/3)^n-1

• Un= (2/3)(162)^n-1

• Un = 162(3/2)^n-1

• 2/3

Write the explicit formula for the geometric sequence.

• a_n = 10(2)^n-1

• a_n = 2(10)^n-1

• a_n = 10(2)ⁿ

• a_n = 2(10)ⁿ

Write the explicit formula (u_n) for the geometric sequence.

• a_n = 10(2)^n-1

• a_n = 2(10)^n-1

• a_n = 10(2)ⁿ

• a_n = 2(10)ⁿ

Write the explicit formula (u_n) for the geometric sequence.

• a_n = 4(3)^n-1

• a_n = 3(4)^n-1

• a_n = -4(3)^n-1

• a_n = 3(-4)^n-1

Write the explicit formula for the geometric sequence.

• a_n = 2(100)^n-1

• a_n = 100(2)^n-1

• a_n = 100(1/2)^n-1

• a_n = (1/2)(100)^n-1

Mathematical Equivalence

OFF