Mister Exam

Derivative of y=sqrt(3x+4)

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

The graph:

from to

Piecewise:

The solution

You have entered [src]
  _________
\/ 3*x + 4 
$$\sqrt{3 x + 4}$$
d /  _________\
--\\/ 3*x + 4 /
dx             
$$\frac{d}{d x} \sqrt{3 x + 4}$$
Detail solution
  1. Let .

  2. Apply the power rule: goes to

  3. Then, apply the chain rule. Multiply by :

    1. Differentiate term by term:

      1. The derivative of a constant times a function is the constant times the derivative of the function.

        1. Apply the power rule: goes to

        So, the result is:

      2. The derivative of the constant is zero.

      The result is:

    The result of the chain rule is:

  4. Now simplify:


The answer is:

The graph
The first derivative [src]
      3      
-------------
    _________
2*\/ 3*x + 4 
$$\frac{3}{2 \sqrt{3 x + 4}}$$
The second derivative [src]
     -9       
--------------
           3/2
4*(4 + 3*x)   
$$- \frac{9}{4 \left(3 x + 4\right)^{\frac{3}{2}}}$$
The third derivative [src]
      81      
--------------
           5/2
8*(4 + 3*x)   
$$\frac{81}{8 \left(3 x + 4\right)^{\frac{5}{2}}}$$
The graph
Derivative of y=sqrt(3x+4)