First do distrubutive property -(x+4)=-8 Multiply the parenthesis by the invisible -1 in the front : -x-4=-8 Now add 4 to both sides -x=-4 then divide -1 by both sides x=4 is your answer
To determine the value of , we want to be 1, so that . Notice that if , then , so the value of is simply . From the graph, it appears that , so therefore .