Mister Exam

Derivative of (x-3)/(x+4)

Function f() - derivative -N order at the point
v

The graph:

from to

Piecewise:

The solution

You have entered [src]
x - 3
-----
x + 4
$$\frac{x - 3}{x + 4}$$
(x - 3)/(x + 4)
Detail solution
  1. Apply the quotient rule, which is:

    and .

    To find :

    1. Differentiate term by term:

      1. The derivative of the constant is zero.

      2. Apply the power rule: goes to

      The result is:

    To find :

    1. Differentiate term by term:

      1. The derivative of the constant is zero.

      2. Apply the power rule: goes to

      The result is:

    Now plug in to the quotient rule:


The answer is:

The graph
The first derivative [src]
  1      x - 3  
----- - --------
x + 4          2
        (x + 4) 
$$- \frac{x - 3}{\left(x + 4\right)^{2}} + \frac{1}{x + 4}$$
The second derivative [src]
  /     -3 + x\
2*|-1 + ------|
  \     4 + x /
---------------
           2   
    (4 + x)    
$$\frac{2 \left(\frac{x - 3}{x + 4} - 1\right)}{\left(x + 4\right)^{2}}$$
The third derivative [src]
  /    -3 + x\
6*|1 - ------|
  \    4 + x /
--------------
          3   
   (4 + x)    
$$\frac{6 \left(- \frac{x - 3}{x + 4} + 1\right)}{\left(x + 4\right)^{3}}$$
The graph
Derivative of (x-3)/(x+4)