Determine Function Maps

Does the graph show a function?

• Yes

• No

Which set of ordered pairs is not a function?

• (1, 3), (2, 7), (3, 8), (4, 11)

• (2, 3), (4, 9), (3, 8), (4, 15)

• (1, 2), (3, 5), (6, 9), (7, 11)

• (-9, 4), (-6, 3), (-2, 8), (0, 21)

For the function: f(x) = 7(x - 11), f (16) = _____

• 5

• 35

• 16

• 28

For the set of ordered pairs (x, f(x)): (2, 10), (4, 20), (7, 35), (11, 55), what is the function f(x)?

• f(x) = x + 8

• f(x) = 10x

• f(x) = 7x - 12

• f(x) = 5x

Which statement describes the mapping?

• The mapping represents y as a function of x, because each y-value corresponds to exactly one x-value.

• The mapping does not represent y as a function of x, because two of the x-values correspond to the same y-value.

• The mapping represents y as a function of x, because each x-value corresponds to exactly one y-value.

• The mapping does not represent y as a function of x, because there are more x-values than different y-values.

Is this a function?  (a)  

The domain is​ (b)  

The range is​ (c)  

• Yes

• No

• {-1, 0, 1, 2, 3}

• {-1, 1, 2, 3}

• {1, 2, 3}

• {0, 1, 2, 3}

Does the mapping represent a function?

• yes

• no

The mapping shows a relationship between x and y. y ​ (a)  

a function of x, since the x-values ​ (b)   correspond to exactly one y-value.

• is not

• do not

• Is

• Do

Tags

8.5G

​ (a)   ​

• Mapping does not represents y as a function of x.

• Mapping represent y as a function of x

The mapping 

​ (a)  

 y as a function of x, because 

​ (b)  

• does not represent

• represents

• each x-value corresponds to more than one y-value

• each x-value corresponds to exactly one y-value