62,556 views
44 votes
44 votes
Which table represents a function?

X
y
-3
-1
0
0
-2
-1
8
1
X
-5
0
-5
6
O
y
-5
4054
-6
X
-4
-2
-2
X
-4
3
1
O
18242
y
12530
y

Which table represents a function? X y -3 -1 0 0 -2 -1 8 1 X -5 0 -5 6 O y -5 4054 -6 X-example-1
User Adam Kiryk
by
2.8k points

1 Answer

18 votes
18 votes
Answer:

The first table is a function

Step-by-step explanation:

Given:

Table of values for x and y

To find:

the table that represents a function

For a table to be a function, each of the input (x values) will have only one output (y values)

The table that will represent a function will not have more than one output for an x value

a) Each of the inputs appears only one

The table is a function

b) -5 appears twice on the x value. Hence, it is not a function

c) -2 appears twice on the x value. Hence, it is not a function

d) -4 appears twice on the x value. Hence, it is not a function

User Patrick Ferreira
by
2.6k points