Question

Which of the tables represents a function?


Table P
Input Output
6 3
1 2
6 7
Table Q
Input Output
5 1
7 8
5 6
Table R
Input Output
2 5
6 7
9 8
Table S
Input Output
3 6
4 7
4 5
Table P
Table Q
Table R
Table S

Answer 1

find the table that doesn't have duplicate input values (all input values must be different)

Answer 2

so witch one is it

Answer 3

look at each of the four tables, and pick the one where all the input values are different

Answer 4

ok hold on

Answer 5

is it the 3rd one

Answer 6

yes

Answer 7

so the answer is the 3rd one

Answer 8

so the answer is table R

Answer 9

yes

Answer 10

ok can you help me with another problem

Answer 11

Justin and Kane are members of different video game libraries.

Justin pays a $65 membership fee and $8 for each video game he rents.

The following function shows the total amount of money, y, in dollars, that Kane pays for renting x number of video games.
y = 7x + 50.

How many more dollars does Justin pay for a membership fee than Kane?

$15
$42
$58
$65