Q. Equation**y - x representsa) the half plane that contains the positive x-axis.b) closed half plane above the line y=x which contains positive y-axis.c) half plane that contains the negative x-axis.d) none of the above.**

here is the corrected question

Q. Equation "**y-x smaller than or equal to 0**" represents

**a) the half plane that contains the positive x-axis.**

**b) closed half plane above the line y=x which contains positive y-axis.**

**c) half plane that contains the negative x-axis.**

**d) none of the above.**