What is uv + v u = –1 and v = –1.

Triangle abc is reflected over the line y=x triangle abc has points (-6,-,-1) and (-5,-6) what is the c coordinate

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

100 points, hi, i’m not sure what to do here,the data doesn’t seem to be quadratic .? can anyone me, in advance