Choose the solution set represented by the following graph. -6 -5 -4 -3 -2 -1
o
1
2
O XIXER, X<-2)
{XIXER, X > -2]
O XIXER, XS-2)
(XIXER X2-2)

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6