Sunday
December 21, 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) - Find the points on the graph of f where the tangent ...
math - question: find the points at which the graph of x^2 -4x + y62 -6y =12 has...
calculus - Find a function f such that the curve y = f(x) satisfies y'' = 12x, ...
Calculus-derivatives - Verify if these are correct answers. 1. The derivative of...
Calculus - Find the positive value of x where fx=x3+2x1/3 has a horizontal ...
Calculus - Given the function y=(x^2-5/x+3), answer the following questions. a) ...
Calculus - Verify if correct or not please =) What is the slope of the normal to...
calculus - For what values of x does the graph of f have a horizontal tangent? (...
cal - Determine all values of x, (if any), at which the graph of the function ...
calculus - For what values of theta, on the polar curve r=theta, 0<=theta<...

Search
Members