a) Let f(x) = −x^4 − 4x^3 . (i) Find the intervals of
increase/decrease of f. (ii) Find the local extrema of f (values
and locations). (iii) Determine the intervals of concavity. (iv)
Find the location of the inflection points of f. (v) Sketch the
graph of f. (You can choose your own scale for the graph)
b) A farmer wants to fence in an area of 6 km2 in a rectangular
field and then divide it in half with...
Let f(x) = −x^4 − 4x^3.
(i) Find the intervals of increase/decrease of f.
(ii) Find the local extrema of f (values and locations).
(iii) Determine the intervals of concavity.
(iv) Find the location of the inflection points of f.
(v) Sketch the graph of f. (You can choose your own scale for
the graph)
1) Find the exact absolute max and exact min for
f(x)=x^3-3x^2-6x+4 on the closed interval [0,3]
2) Let f be continuously differentiable function on the Reals
with the following characteristics:
- f(x) is increasing from intervals (0,2) and (4,5) and
decreasing everywhere else
- f(x) > -1 on the interval (1,3) and f(x) < -1 everywhere
else
Suppose g(x) = 2f(x) + (f(x))^2. On which interval(s) is g(x)
increasing?
Suppose f is defined by f(x)=3x/(4+x^2), −1≤x<3.
What is the domain of f?
Find the intervals where f is positive and where f is
negative.
Does f have any horizontal or vertical asymptotes. If so, find
them, and show your supporting calculations. If not, briefly
explain why not.
Compute f′ and use it to determine the intervals where f is
increasing and the intervals where f is decreasing.
Find the coordinates of the local extrema of f
Make a rough...
f(x) = −x^3 − 3x^2 + 9x + 12
A) use second derivative test to test for relative max/min
B) Find (x,y) coordinates of point(s) of inflection
C) Define the intervals of concavity
Let
f(x)=(x^2)/(x-2) Find the following
a) Intervals of increase/decrease (approximate the critical
numbers to the nearest thousandths be sure to show the values
tested)
b) Local maxima and local minima
c) Intervals of concavity and points of inflection (show all
testing)
d) Graph (x^2)/x-2 Label the intercepts,max/min, and
inflection points. Indicate the window used on your
calculator