Given:
the solution to a pair of linear equations graphed in the coordinate plane to be(-6,-5).
We will find which option is correct.
To verify that (-6,-5) is the correct solution
So, the first two options are wrong because the substitution is wrong
The third option is wrong because when the substitution with x = -6 into the equation on the right-side the answer will be as follows:
[tex]\begin{gathered} y=\frac{-1}{2}x-2 \\ -5=\frac{-1}{2}(-6)-2 \\ -5=3-2 \\ -5=1\rightarrow\text{Wrong} \end{gathered}[/tex]
So, the answer will be option 4
we must substitute with x = -6 and y = -5
