Find the average rate of change of the function from $$x _ { 1 } = 1 \text { to } x _ { 2 } = 3 \text {. }$$ $$f ( x ) = x ^ { 3 } - 3 x ^ { 2 } - x$$
A) The average rate of change from $x _ { 1 } = 1$ to $x _ { 2 } = 3$ is 3 .
B) The average rate of change from $x _ { 1 } = 1$ to $x _ { 2 } = 3$ is 5 .
C) The average rate of change from $x _ { 1 } = 1$ to $x _ { 2 } = 3$ is 19 .
D) The average rate of change from $x _ { 1 } = 1$ to $x _ { 2 } = 3$ is $- 5$.
E) The average rate of change from $x _ { 1 } = 1$ to $x _ { 2 } = 3$ is 0 .

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The Answer of Find the average rate of change of the function from $$x _ { 1 } = 1 \text { to } x _ { 2 } = 3 \text {. }$$ $$f ( x ) = x ^ { 3 } - 3 x ^ { 2 } - x$$
A) The average rate of change from $x _ { 1 } = 1$ to $x _ { 2 } = 3$ is 3 .
B) The average rate of change from $x _ { 1 } = 1$ to $x _ { 2 } = 3$ is 5 .
C) The average rate of change from $x _ { 1 } = 1$ to $x _ { 2 } = 3$ is 19 .
D) The average rate of change from $x _ { 1 } = 1$ to $x _ { 2 } = 3$ is $- 5$.
E) The average rate of change from $x _ { 1 } = 1$ to $x _ { 2 } = 3$ is 0 .

Find the Average Rate of Change of the Function From x