Absolute • Approximate • Both • Critical • Derivative • Determine • Differentiable • Differential • Differentiate • Either • Equations • Extremum • Find • First • Function • Functions • Have • Higher • Increasing • Its • Largest • Limited • Location • Lowest • Maximum • Method • Minimum • Nature • Near • Neighborhood • Neither • Nor • Over • Point • Points • Reaches • Relative • Saddle • Second • Smallest • Solve • Stationary • Twice • Undefined • Used • Where • While • Within • Yes • Zero