Answer:
Step-by-step explanation:
1) First graph is correct! Because clearly, the roots are visible, and it's a 3rd degree polynomial, so it can't be bottom twos, cuz they're parabolas.
2) Roots are at -6, -2 and 3. (If you need further assistance on this, let me know!) Hence, It is the last graph!
3) Roots are at -4, -2 and 2, (Again, if you need assistance, let me know!)
Hence, it is the first one!
Hope this cleared things up for you!