Analyzing Tables Answers

What is the x-intercept of the continuous function shown in the table?(0, –8) (0, 2)(–8, 0)(2, 0)

Using only the values given in the table for the function f(x) = –x3 + 4x + 3, what is the largest interval of x-values where the function is increasing?

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The rock hits the ground between [___] seconds and [___] seconds after it is dropped.