Arithmetic and Geometric STAAR

Which best describes the sequence below?

• It is arithmetic with common difference 4.

• It is arithmetic with a common difference -3.

• It is geometric with a common ratio -3.

• It is geometric with common ratio 3.

A sequence whpse sucessive terms differ by the same nonzero number d, called the common difference. A pattern of numbers that increae or decrease at a constant amount.

• Quadratic

  Regression

• Arithmetic Sequence

• Explict Rule

• Geometric Sequence

In an arithmetic sequence, the constant amount of change between any term and the previous term.

d = term - previous term

• Common Difference

• nth term

• Explict Rule

• Common Ratio

The value in a sequence for a given position, n.

• Common Difference

• nth term

• Explict Rule

• Common Rato

• Arithmetic

• Geometric

Answer explanation

Percentages are almost always Geometric.

• Arithmetic

• Geometric

Answer explanation

Percentages are almost always Geometric.

• 315

• 330

• 345

• 360

A sequence in which the ratio of successive terms is a constant, r, called the common ratio, where r ≠ 0 and

r ≠ 1 . Apattern of numbers that multiplies by a constant ratio.

• Arithmetic Sequence

• Common Difference

• Geometric Sequence

• Common Ratio

Arithmetic, geometric, or neither?

4, 9, 14, 19, ...

• Arithmetic

• Geometric

• Neither

Arithmetic, geometric, or neither?

100, 50, 25, 12.5, ...

• Arithmetic

• Geometric

• Neither