In problems 25 and 26 , use a graphing utility to graph each function over the indicated interval. Approximate any local maximum values and local minimum values. Determine where the function is increasing and where it is decreasing. f ( x ) = 2 x 3 − 5 x + 1 ( − 3 , 3 )
In problems 25 and 26 , use a graphing utility to graph each function over the indicated interval. Approximate any local maximum values and local minimum values. Determine where the function is increasing and where it is decreasing. f ( x ) = 2 x 3 − 5 x + 1 ( − 3 , 3 )
Solution Summary: The author explains how to determine the graph of the function f(x)=2x3-5x+1 using graphing utility.
In problems
25
and
26
,
use a graphing utility to graph each function over the indicated interval. Approximate any local maximum values and local minimum values. Determine where the function is increasing and where it is decreasing.
f
(
x
)
=
2
x
3
−
5
x
+
1
(
−
3
,
3
)
Formula Formula A function f(x) attains a local maximum at x=a , if there exists a neighborhood (a−δ,a+δ) of a such that, f(x)<f(a), ∀ x∈(a−δ,a+δ),x≠a f(x)−f(a)<0, ∀ x∈(a−δ,a+δ),x≠a In such case, f(a) attains a local maximum value f(x) at x=a .
A vector with magnitude 5 points in a direction 190 degrees counterclockwise from the positive x axis.
Write the vector in component form, and show your answers accurate to 3 decimal places.
||A||=23
45°
Find the EXACT components of the vector above using the angle shown.
Given ƒ = (10, -10) and q = (-8, −7), find ||ƒ— q||
and
dƒ-9.
Give EXACT answers. You do NOT have to simplify your radicals!
Chapter 1 Solutions
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (4th Edition)
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