NC.8.F.1 Exam Prep

Which ordered pair (x,y) can replace the blank to make the following a function: {(1,2),(5,6),(_, _),(2,4),(7,8)}?

• (1,3)

• (5,9)

• (3,1)

• (7,5)

Tags

NC.8.F.1

Identify the relation that represents a function:

• {(10,1),(10,2),(20,3),(30,4)}

• {(5,5),(6,6),(7,7),(8,8)}

• {(4,2),(4,-2),(9,3),(9,-3)}

• {(1,0),(2,1),(1,2),(3,3)}

Tags

NC.8.F.1

Given the relation Z={(2,-2),(3,-3),(4,-4),(5,-5)}. Is Z a function?

• Yes, because each x-value corresponds to exactly one y-value.

• Yes, because each y-value corresponds to exactly one x-value.

• No, because there are identical x-values with different y-values.

• No, because there are identical y-values with different x-values.

Tags

NC.8.F.1

Which relation is NOT a function?

• 
• 
• 
• 

Tags

NC.8.F.1

The graph displays a relation between x and y. This relation does NOT define y as a function of x because

• the y-values are generally larger than the x-values.

• points (6,8) and (6,10) have the same input but different outputs.

• the relation uses numbers greater than 5.

• there are only four points in the relation.

Tags

NC.8.F.1

Select the table that represents a function:

• 
• 
• 
• 

Tags

NC.8.F.1

Which sets of ordered pairs are functions and which are not functions?

Groups:

(a) Function

,

(b) Not Function

• {(1,3)(2,4)(3,3)(4,2)}

• {(1,6)(2,5)(2,3)(4,8)}

• {(1,5)(3,7)(4,8)(4,9)}

• {(1,5)(2,5)(3,5)(4,5)}

• {(1,5)(1,6)(1,7)(1,8)}

Classify the graph.

• Function

• Not Function

Tags

NC.8.F.1

Classify the graph.

• Function

• Not Function

Tags

NC.8.F.1

Classify the graph.

• Function

• Not Function

Tags

NC.8.F.1