You have to take a better picture
This is the graph for the equation, it crosses through points (0,-8) (-2,4) (-1.6,0) and its vertex is (-2,2)
Hope this helps !!
The answer is x=3 because abt+tbc=abc
Answer is True
AB = DC
AB || DC
The answer to your question is y = sin(x + 90) as we have a sine graph phase shifted 90 units left