Proving Fermat's Theorem and graphing local and absolute extrema

Review of limits, continuity, and the Intermediate Value Theorem

Review of limits, continuity, and the Intermediate Value Theorem

Evaluating limits where the denominator approaches zero

Evaluating left and right limits of a fraction containing an absolute value

Evaluating one-sided and two-sided limits of a piecewise

Explaining why a piecewise function is discontinuous at a point

Solving for the values for constants to make a piecewise function is continuous

Evaluating a a limit from the left for a rational function