In Problems 11 and 12, evaluate each expression using the graphs of y = f(x) and y = g(x) shown in the figure. %3D %3D 11. (a) (g•f) (-1) (c) (fog) (-1) (b) (g•f) (0) (d) (fog) (4) 6. y = g (x) (6, 5) (7, 5) 12. (a) (gof) (1) (c) (fog) (0) (b) (g•f) (5) (d) (fog) (2) (1, 4) (5, 4). (8, 4) (-1, 3), (7, 3) (3, 1) (2, 2) (4, 2) (6, 2) (-1, 1), (5. 1) -2 2 4 6 8 X -2 -y = f(x) (2, -2) (1, -1)

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