Need help asap!! The system of Ax+Bx=C Dx+Ey =F has the solution (2, -3) where A, B, C, D, E and F are all non-zero real numbers. Select ALL the systems of equations with the same solution.

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)