Question

Which sets of coordinates is a solution of the equation 2x-y=11?
A.) (-6,-1) B.) (-1,9)
C.) (0,11) D.) (2,-7)
Can you explain the answer to me?

Answer 1

Well, you can try them out and see if they produce a true statement. For example, let's try answer C:

\[2(0)-11 = 11\]\[-11=11\]That's not true, so (0,11) is not a solution to that equation.

Answer 2

How about (8,5)?
\[2(8)-5=11\]\[16-5=11\]\[11=11\]That is true, so (8,5) would be a solution (though it does not appear on your answer list).

Answer 3

2x -y = 11
-y = -2x + 11
y = 2x -11
im thinking
d but not sure

Answer 4

It was D.) Thanks :)

Answer 5

np