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.

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

Step-by-step explanation:

The given equation is,

when we take x = 1 then

when we take x = 2 then

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.

the correct option is b

step-by-step explanation:

it's undefined because anything multiplied by 0 is 0. that said, 7 days is 168 hours