y = 2 is a horizontal line that crosses the y axis at 2.
The solution is: x = 1 and y = -1
-4
There is one solution for x and one solution for y. The solution is: x = -1 ; y = 2
Yes if x=2 and y=2, then x=y
4
If by that you mean x= 1 and y= 2 then yes (1,2) is a solution
y = 0x = y + 2plug 0 in for yx = 0 + 2x = 2
2x - y = 2 2x - y = -2 This system is inconsistent -- that is, there is no solution. To help see why, let Z = 2x - y and notice Z can't be 2 and -2 at the same time.
x = 1 and y = 2
x = -3, y = 7
No.
7