Question

Which shows solutions to x + 4y = 9 if x and y must be whole numbers.

A. {(0, 9), (1, 4), (2, 1)}

B. {(2, 1), (1, 6), (0, 9)}

C. {(1, 2), (5, 1), (9,0)}

D. {(0, 9), (1, 5), (2, 1)}

Answer 1

is it C?

Answer 2

x+4y=9
So
x=9-4y

1=9-4*2
5=9-4*1
9=9-4*0
So you are right!

Answer 3

thanks

Answer 4

You are welcome!