zrq1229
zrq1229 zrq1229
  • 01-08-2016
  • Mathematics
contestada

Need help.
Find the derivative of f(x) = 5x + 9 at x = 2.
Find the derivative of f(x) = 6 divided by x at x = -2.

Thanks

Respuesta :

konrad509
konrad509 konrad509
  • 01-08-2016
[tex]f(x)=5x+9\\ f'(x)=5[/tex]
The derivative is constant. It's equal 5 for any argument.

[tex]f(x)=\dfrac{6}{x}\\ f'(x)=-\dfrac{6}{x^2}\\ f'(-2)=-\dfrac{6}{(-2)^2}=-\dfrac{6}{4}=-\dfrac{3}{2}[/tex]
Answer Link

Otras preguntas

Which algerbric expression represents this phrase the product of 40 and the distance to the finish line
Most of the fresh water on earth is
A bond is worth $100 and grows in value by 2 percent each half year. find the value of f(1) = 100 (1.02)²^t
What is foreign exam scores for this semester are 22, 72, 79, 72 and 70 find the measurement of center of the five scores.(mean and median.)
Miscommunication example of listening
HELPPPPPPPPP!!!!!!!!!!!!
HELPPPPPPPPP!!!!!!!!!!!!
What number gives a result of − 5 when 9 is subtracted from the quotient of the number and 4 ?
The perimeter of the triangle below is 41 units. Find the length of side AC. Write your answer without variables.
Which of the following sentences is correct? A. Them are twenty students in the class. B. They're twenty students in the class. C. Their are twenty students in