?Consider the following functions and express the relationship between a small change in x and the corresponding change in y in the form dy = ?f?? ?dx?. f? ?)= (4 +? ?)/(4 ? ?x?)

Solution 34E STEP 1 Let f be the function differentiable on an interval containingx.The small change in x is denoted by the differential dx. The corresponding change in f is approximated by...