Precalculus. can someone help me

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

The graph shown is the graph of which function?

Which rule describes the composition of transformations that maps ajkl to aj"k"l"? ro. 900 o to, -2(x, y) to, -20 ro, 900(x, y) ro, 9000 t-2. o(x,y) t-2, 00 ro, 900(x, y)