Farmer ed has 850 meters of fencing, and wants to enclose a rectangular plot that borders on a river. if farmer ed does not fence the side along the river, find the length and width of the plot that will maximize the area. what is the largest area that can be enclosed?

The largest area that can be enclosed = 90312.5 m²

Quadratic function is a function that has the term x²

The quadratic function forms a parabolic curve

The general formula is

f(x) = ax² + bx + c

where a, b, and c are real numbers and a ≠ 0.

The parabolic curve can open up or down determined from the value of a. If a is positive, the parabolic curve opens up and has a minimum value.

If a is negative, the parabolic curve opens down and has a maximum value

The formula for finding the coordinates of the maximum and minimum points of the quadratic function is the same.

The maximum / minimum point of the quadratic function is

Farmer Ed will make a fence by the river

The total length of the entire fence is 850 meters

From the attached picture, you will get that

fence width = 2x

fence length = 850 -2x

So the area of the fence formed is:

length x width = area = (850-2x) x

area = 850x-2x²

From this we get the quadratic function = -2x²+ 850x

so we get the maximum value because the value a <0 (a = -2)

we look for the value x = -b / 2a = width of the fence

x = -850 / 2.-2 = 212.5

so the length of the fence = 850 - 2,212.5 = 425

The area will be : 212.5 x 425 = 90312.5 m²

domain of the function

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the inverse of the ƒunction  

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F (x) = x2 + 1 g (x) = 5 - x

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Keywords : fencing, farmer, Quadratic function

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls