Which is the correct equation for the graph of f(x), a transformation of the graph of g(x) = log2x?

The line containing the midpoints of the legs of right triangle abc where a(-5,5), b(1, 1), and c(3, 4) are the vertices.

What is the measure of angle tvu shown in the diagram below

Me, the vertices of quadrilateral coat are c(2,0), o(7,0), a(7,2) and t(2,2). prove that coat is a rectangle.