Answer:
![\boxed{-(1)/(2) }](https://img.qammunity.org/2020/formulas/mathematics/middle-school/hos48qpiuodh4v7azl2r9701y9y6fv8x3k.png)
Step-by-step explanation: We find the slope of the original line, The number which, when multiplied times a particular fraction, gives a result of 1. But in this case it would be 0.5 based on th numbers. Therefore your answer would then be Option D.