Question

Need help with several math questions

Answer 1

Which shows solutions to x + 2y = 8 if x and y must be whole numbers?
A.
{(0, 8), (1, 7), (2, 4)}

B.
{(2, 4), (1, 6), (0, 8)}

C.
{(0, 8), (1, 5), (2, 4)}

D.
{(8, 0), (6, 1), (4, 2)}

Answer 2

Try them out! For example, in A:

\[(0,8)\]\[(0)+2(8) = 8\]Nope, that doesn't work!
\[(1,7)\]\[1+2(7)=8\]Nope, that doesn't work!\[(2,4)\]\[2+2(4) = 8\]Three strikes and you're out!

So A is clearly not the right answer.

Answer 3

Ok. Thanks!

Answer 4

Soo.. testing the others

Answer 5

a bit of thinking about the results I got may shorten your search...

Answer 6

It's B, I think