Number Functions and Patterns

Cliff has a little brother named Joey. Joey is 19 inches tall at the time of his birth. Cliff measures how much Joey grows each month. The data is displayed in the table. Which is the best description of Joey’s growth?

• Joey was 21 inches tall when born and grew 2 inches per month.

• Joey was 19 inches tall when born and grew 4 inches per month.

• Joey grew 1 inch per month.

• Joey was 19 inches tall when born and grew 2 inches per month.

Jasmin made a table to show the total cost of tickets

to the movie. Which of the following represents the cost of t tickets?

• 6 + t

• 30 + t

• t ÷ 6

• 6 x t

If y represents a number, which of the following expressions means 8 more than that number?

• y + 8

• 8 - y

• y x 8

• 8 ÷ y

Which expression means four less than x ?

• 4x

• 4 + x

• x – 4

• 4 – x

What could be the rule the number machine uses?

• n + 5 = t

• n ÷ 5 = t

• n x 5 = t

• n – 5 = t

• A

• B

• C

• D

• A

• B

• C

• D

• 2, 6

• 6, 0

• -1, -4

• 1, 0

• 2, 1

The equation of the line is y = 3x. Which graph shows this line?

• 
• 
• 
• 

Which equation best describes the relationship in this table?

• y = x - 4

• y = x + 4

• y = 3x

• y = 4x