So that equation is in slope form and the equation for standard form is Ax + By = C. Some rules for standard form is x can't be negative, no fractions, and y and c can't be negative so,
y = 1/2x -2
+2 +2
y + 2 = 1/2x
-y -y
1/2x - y = 2
This isn't the final answer because standard form can't have fractions, so you divide the equation by 1/2 and get x -2 = 4 Hope this helps!!!