Which table shows a proportional relationship between x and y?
plz

The proportional table in the attached figure

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form or

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

Verify each table

Find the value of the constant of proportionality k for each ordered pair of a table.

If all the values of k are the same, then the table represent a proportional relationship between x and y

Table 1

For x=1, y=2 ---->

For x=2, y=4 ---->

For x=3, y=8 ---->

The values of k are not equal

so

This table not represent a proportional relationship between x and y

Table 2

For x=0, y=4

The line not passes through the origin

so

This table not represent a proportional relationship between x and y

Table 3

For x=0, y=0 ----> is OK the line passes though the origin

For x=1, y=1 ---->

For x=2, y=4 ---->

The values of k are not equal

so

This table not represent a proportional relationship between x and y

Table 4

For x=1, y=4 ---->

For x=2, y=8 ---->

For x=3, y=12 ---->

The values of k are the same

so

This table represent a proportional relationship between x and y

correct answer:

b.(19,-2)

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.