3. {TI-4} The function below has zeros at x=-1 and x = 2 and passes through...

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3. {TI-4} The function below has zeros at x=-1 and x = 2 and passes through the point (1,-2). Find the remaining zero and provide a sketch of the cubic function. f(x) = ax + bx + cx - 8 3. {TI-4} The function below has zeros at x=-1 and x = 2 and passes through the point (1,-2). Find the remaining zero and provide a sketch of the cubic function. f(x) = ax + bx + cx - 8