2. Complete parts a through f below to find nonnegative numbers x and y that satisfy the given requirements. Give the optimum value of P. x+ y = 105 and P =x*y is maximized a. Solve x + y = 105 for y. y% = b. Substitute the result from part a into the equation P = xy for the variable that is to be maximized. P = c. Find the domain of the function P found in part b. (Simplify your answer. Type your answer in interval notation.) dP = 0. d. Find dx Solve the equation dx dP dx Solve the equation. (Use a comma to separate answers as needed.) e. Evaluate P at any solutions found in part d, as well as the endpoints of the domain found in part c. Find P(0). P(0) = (Simplify your answer.) Determine P(70). P(70) = (Simplify your answer.) Find P(105). P(105) = (Simplify your answer.) f. Give the maximum value of P, as well as the two numbers x and y for which xy is that value. The maximum value of P is The values of x and y are x = and y =
Minimization
In mathematics, traditional optimization problems are typically expressed in terms of minimization. When we talk about minimizing or maximizing a function, we refer to the maximum and minimum possible values of that function. This can be expressed in terms of global or local range. The definition of minimization in the thesaurus is the process of reducing something to a small amount, value, or position. Minimization (noun) is an instance of belittling or disparagement.
Maxima and Minima
The extreme points of a function are the maximum and the minimum points of the function. A maximum is attained when the function takes the maximum value and a minimum is attained when the function takes the minimum value.
Derivatives
A derivative means a change. Geometrically it can be represented as a line with some steepness. Imagine climbing a mountain which is very steep and 500 meters high. Is it easier to climb? Definitely not! Suppose walking on the road for 500 meters. Which one would be easier? Walking on the road would be much easier than climbing a mountain.
Concavity
In calculus, concavity is a descriptor of mathematics that tells about the shape of the graph. It is the parameter that helps to estimate the maximum and minimum value of any of the functions and the concave nature using the graphical method. We use the first derivative test and second derivative test to understand the concave behavior of the function.
![2. Complete parts a through f below to find nonnegative numbers x and y that satisfy the given requirements. Give the
optimum value of P.
x+y = 105 and P =xy is maximized
a. Solve x + y = 105 for y.
y =
b. Substitute the result from part a into the equation P = xy for the variable that is to be maximized.
P =
c. Find the domain of the function P found in part b.
(Simplify your answer. Type your answer in interval notation.)
dP
= 0.
dx
dP
d. Find
Solve the equation
dx
eo co
dP
dx
Solve the equation.
(Use a comma to separate answers as needed.)
e. Evaluate P at any solutions found in part d, as well as the endpoints of the domain found in part c.
Find P(0).
P(0) =
(Simplify your answer.)
Determine P(70).
P(70) =
(Simplify your answer.)
Find P(105).
P(105) =
(Simplify your answer.)
f. Give the maximum value of P, as well as the two numbers x and y for which xy is that value.
The maximum value of P is
The values of x and y are x =
and y =
3. A fence must be built to enclose a rectangular area of 20,000 ft2. Fencing material costs $3 per foot for the two sides facing
north and south and $6 per foot for the other two sides. Find the cost of the least expensive fence.
The cost of the least expensive fence is $
(Simplify your answer.)
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