The graph of y = f(x) is shown below. Find the value of f(-1). 10 ON y 8 6 S + ㅇ 2 1 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 -1 -2 다 c -8 -10 1 4 6 Ga 9 10 미미​