Question

4. Which of the following sets of ordered pairs represents a FUNCTION?* 1 point

(11, -7)
(14, 7)
(14, -9)
(15, -7)
(17, 7)
(15, -13)
(13, 1)
A
(10, -6)
(16, 18)
(16, 7)
(-3, 14)
(2, 16)
(16, 20)
(20, 10)
Oo

Answer 1

The rule is .

Every domain of the function should have an unique range i.e f(x)=y

#1

f(14) has two values hence not a function

#2

f(15) has two values hence not a function

#3

f(16) has two values hence not a function

#4

Yes it's a function,every domain has an unique range

Answer 2

• Option D

Explanation:

The graph of a function should pass the vertical line test in order to be a function.

Option A

• Fails as repeat x-values of 14 with different y-values

Option B

• Fails as repeat x-values of 15 with different y-values

Option C

• Fails as repeat x-values of 16 with different y-values

Option D

• All x-values are different so this is a function