Given the following : f(x)=3x^ 1 2 +7x^ - 1 4 +8x^ -4 ;g(x)=- 7 4 x^ 1 2 +12x^ - 1 4 -1 ; and h(x) = 8x ^ 3 + 12x ^ (- 1/2) + 8x ^ (1/4) - 14x ^ - 4

Use the diagonals to determine whether a parallelogram with vertices u(2,−2), v(9,−2), w(9,−6), and x(2,−6) is a rectangle, rhombus, or square. give all the names that apply.

I'll give brainliest if you answer right : )

Which ordered pair (c,d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15