Friday
April 18, 2014

Homework Help: Calculus-derivatives

Posted by Jake on Saturday, February 18, 2012 at 1:33pm.

Verify these answers~

1. For what value(s) of x does f(x)=(x^2-16)^5 have a horizontal tangent?

a) x=-4,4
b) x=-4,0,4
c) x=0
d) x=0,4

Answer is B, x=-4,0,4

---------------------------------------
2. What is the derivative of f(x)=(3x^2+7)^3?

a) f'(x)=3(3x^2+7)^2

b) f'(x)=18(3x^2+7)^2

c) f'(x)=18x(3x^2+7)^2

d) f'(x)=3(3x^2+7)^2

Answer: C
---------------------------------------
3. What is the y-intercept of the line that is tangent to f(x)=4/(3x+1) at (-1,-2)?

a) -5
b) -3/4
c) 3/4
d) -2

Answer: B
-------------------------------------
4. For which point(s) on the graph of f(x)=5x/(x+2) is the slope of the tangent 2/5?

a) (-3,15)
b) (7, 35/9)
c) (3,3) and (-7,,7)
d) (24, 60/13)

Answer is C
----------------------------------

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Calculus: Derivatives - I'm having trouble understanding what derivatives in ...
Calculus-derivatives - Verify if these are correct answers. 1. The derivative of...
math calculus - Find the absolute extrema of the function on the closed interval...
Calculus - Using the derivative definition of f (x) = (f (x+h) f (x)) / (h) ...
calculus - Verify that the Intermediate Value theorem applies to the indicated ...
Calculus - Verify the hypothesis of the mean value theorem for each function ...
calculus - find the second-order partial derivatives of f(x,y)=x^3 + x^2y^2 + y^...
calculus - verify the Intermediate Value Theorem if F(x)=squre root of x+1 and ...
calculus - Let f be a function that has derivatives of all orders for all real ...
calculus - verify that the function satisfies the hypothesis of the mean value ...

Search
Members