Hi! can someone me solve this inequality (i don’t need the graph solution)

Which function is represented by the graph

In the figure below, ∠dec ≅ ∠dce, ∠b ≅ ∠f, and segment df is congruent to segment bd. point c is the point of intersection between segment ag and segment bd, while point e is the point of intersection between segment ag and segment df. the figure shows a polygon comprised of three triangles, abc, dec, and gfe. prove δabc ≅ δgfe.

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2