Answer: B) 0
[tex]\rightarrow \sf y = \dfrac{1}{2} x - 2[/tex]
insert x = 4
[tex]\rightarrow \sf y = \dfrac{1}{2} (4) - 2[/tex]
simplify
[tex]\rightarrow \sf y = 2 - 2[/tex]
subtract
[tex]\rightarrow \sf y = 0[/tex]
