Answer
Yes, it is.
Work Step by Step
In order to see if something is a solution to an equation, we plug in the (x,y) point to see if the equality is correct. Thus, we plug (2, 1$\frac{1}{4}$) into y=x-$\frac{3}{4}$ to find:
1$\frac{1}{4}$=2-$\frac{3}{4}$
1$\frac{1}{4}$=1$\frac{1}{4}$
1$\frac{1}{4}$ does equal 1$\frac{1}{4}$, so this is a solution to the equation.
