Find all critical numbers and use the First Derivative Test to classify each as the location of a relative maximum, relative minimum or neither. You may use a chart or a number line to perform your sign tests. 5.) f (x ) = x*+ 4x3 -2 6.) f(x) =x2-2x/2+2 ficx) = 48+ 127(2 = 0 4x 2 ( X + 3 ) = 0 X =01-3 decreasing - increasing - 3