Patterns and Algebra

Students mailed invitations to a play to 414 parents. Each student mailed 18 invitations. If s equals the number of
students who mailed invitations, which equation best shows the
number of invitations that were mailed?

•  s + 18 = 414 

• s ÷ 18 = 414 

• 18 ÷ s = 414

•  18s = 414

Find the rule the pattern is using:

8,16,32,64

• Add 16

• Multiply 2

• Add 8

• Multiply 5

What is the SIXTH number in this pattern?

13,16,19,22

• 28

• 25

• 31

• 22

What is the CORRECTLY written rule for this pattern?

12,21,30,39,48,57

• Start at 12. Add 18

• Start at 3. Add 9

• Start at 21. Subtract 9

• Start at 12. Add 9

• A.
• B.
• C.
• D.

• Graph P
• Graph Q
• Graph R
• Graph S

• A

• B

• C

• D

• A

• B

• C

• D

Tags

TEKS 4.5(B)

• A

• B

• C

• D

Tags

TEKS 4.5(B)

Find the rule.

• The output is: t + 6

• The output is: t + 2

• The output is: t x 2

• The output is: t - 6