Question

How do you complete ordered pairs for x + y = 4 given (0, ), (2, ), ( ,0)?

Answer 1

I found:
`(0,4)`
`(2,2)`
`(4,0)`

Explanation:

For ordered pairs `(x,y)` set:
`x=0` then `y=4`
`x=2` then `y=4-2=2`
`y=0` then `x=4`