Plessy on the Brown decision

How would Dworkin assess the impact of Plessy on the Brown decision?Did precedent matter? What would Scheingold say in response?

In your essay, be sure to do the following:

set forth Dworkin’s concept of law (10 points);
identify the observable implications of his concept (20 points);
apply his concept to the Brown opinion to assess whether the law “mattered” (30 points) (hint: be sure to consider its treatment of Plessy);
set forth Scheingold’s concept of law (10 points);
Use his concept to critique Dworkin’s analysis and suggest how scholars should assess the Brown decision (10 points); and
conclude by arguing which definition is analytically “best” for assessing the impact of law (20 points).