Linear Functions and Models TEST

Which set of ordered pairs does not represent a function?

• (4, 1), (6, 2), (7, 5), (9, 2)

• (0, 5), (1, 7), (2, 9), (3, 11)

• (−2, 5), (0, 2), (9, −6), (8, 7)

• (5, 5), (6, 10), (10, 15), (5, 20)

Tags

CCSS.8.F.A.1

Evaluate the function f (x) = 3x + 5 at f(3).

Tags

CCSS.HSF.IF.A.2

Tags

CCSS.HSF.IF.A.2

Tags

CCSS.HSF.IF.A.2

The table shows the height of a child each year on the child’s birthday.

For the first five years, which linear function, f(x), could model the child’s height as a function of their age, x?

• f(x) = 10x

• f(x) = 10x + 70

• f(x) = 10x + 80

• f(x) = 10x + 120

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

• yes/yes

• yes/no

• no/yes

• no/no

• yes/yes

• yes/no

• no/yes

• no/no

• yes/yes

• yes/no

• no/yes

• no/no

When Mei was born, her parents gave her 6 dolls to start her collection. Each year, she receives 4 new dolls as gifts. What function, f(x), models the total number of dolls in her collection after x number of years?

Tags

CCSS.HSF-BF.A.1A