To find an interval that must contain a zero, inspect the signs of the y-values in the table for consecutive x-values. If the sign changes from positive to negative or vice versa between two x-values, the Intermediate Value Theorem guarantees a zero in that interval for a continuous function.
Conditions: The function is treated as continuous.; The table contains discrete sample points of the function.
To find an interval that must contain a zero, inspect the signs of the y-values in the table for consecutive x-values. If the sign changes from positive to negative or vice versa between two x-values, the Intermediate Value Theorem guarantees a zero in that interval for a continuous function.
Conditions: The function is treated as continuous.; The table contains discrete sample points of the function.