Question

Which of the following statements best describes the graph of x + y = 4?

It is a line which intersects the x axis at (4, 4).

It is a line which intersects the y axis at (4, 4).

It is a line joining the points whose x and y coordinates add up to 8.

It is a line joining the points whose x and y coordinates add up to 4.

Answer 1

Its the last option!

Explanation:

Answer 2

Answer: The correct option is, It is a line joining the points whose x and y coordinates add up to 4.

Explanation:

The given equation is,
`x+y=4`

when we take x = 1 then

`1+y=4`

`y=3`

when we take x = 2 then

`2+y=4`

`y=2`

From this we conclude that the sum of 'x' and 'y' coordinates is always equal to 4.

Hence, the correct answer is, It is a line joining the points whose x and y coordinates add up to 4.