Prelim Exam in Math 100

The word "pattern" is defined as what?

• It is the repeated or regular way in which something happens or us done.

• It is always a number and shapes.

• It is a regularity in the world, in human-made design, or in abstract ideas.

• A and C

Which of the following involves patterns?

• Honeycomb, stripes of zebra, feathers of chicken

• Typhoon, wind, tornado, flood, rain

• Roots, sunflower, branches of a tree

• All of the mentioned

What is a number pattern?

• A pattern that involves numbers

• A number that involves pattern

• None of A and B

Based on the discussion, as agreed, a number sequence is denoted as

• An (A sub n)

• Sn (S sub n)

• <S>

• an (a sub n)

Based on the discussion, as agreed, the "term" of a number sequence is denoted as

• Sn ( S sub n)

• an (a sub n)

• a1 (a sub 1)

• An (A sub n)

The notation a1 (a sub 1) of a number sequence implies

• The missing term

• The first term

• The last term

an=3n+5 is best known as a/an

• General form of a certain number sequence

• Sequence

• Equation

Which is true of an=3n+5?

• a1 = 8

• a9 = 31

• a3 = 38

• a2 = 37

From an = 3n+5, the first five terms are?

• An = 1,2,3,4,5

• An = 8,11,14,17,20

• An = 8,11,14,17,20,...

• An = 36,37,38,39,40

Which of the following best defines an arithmetic sequence?

• It is a sequence whose nonconsecutive terms having a common difference.

• It is a sequence whose consecutive terms having a common difference.

• It is a sequence whose consecutive terms having a common ratio.

• It is a sequence whose consecutive terms having a difference.