A farmer wishes to build a three-sided fence adjacent to a river. He has 240 feet of fencing available. 1. a. Let x be the width and y be the length of the fence. Set up the appropriate equation that represents the perimeter of the fence. b. Set up a function of x that represents the area enclosed by the fence. c. Find the vertex of that function using the algebraic formulas. Check your work using the maximum finder on the graphing calculator.

Trigonometry (MindTap Course List)
8th Edition
ISBN:9781305652224
Author:Charles P. McKeague, Mark D. Turner
Publisher:Charles P. McKeague, Mark D. Turner
ChapterA: Appendix: Review Topics
SectionA.3: Introduction To Functions
Problem 29PS: Suppose you have a job that pays $8.50 per hour and you work anywhere from 10 to 40 hours per week....
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1. A farmer wishes to build a three-sided fence adjacent to a river. He has 240 feet of fencing
available.
a. Let x be the width and y be the length of the fence. Set up the appropriate equation
that represents the perimeter of the fence.
b. Set up a function of x that represents the area enclosed by the fence.
Find the vertex of that function using the algebraic formulas. Check your work using
the maximum finder on the graphing calculator.
d. What dimensions of the fence would yield the largest area?
e. What is the largest possible area?
C.
2. Given the parabola y = 2x²
- 6 and the point at the origin, (0,0).
a. Let (x, y) be a function on the parabola. Explain why the distance from the origin to
that point is d =
b. Construct a function f (x) that represents the distance from the origin to a point on
the parabola.
c. Construct a graph of that function.
d. Use the minimum finder on the graphing calculator to identify the local minimum.
e. Determine the point on the graph of the parabola that is closest to the origin.
Round the coordinates to two decimal places.
f. Determine the shortest distance from the origin to the parabola.
Vx2 + y2
Transcribed Image Text:1. A farmer wishes to build a three-sided fence adjacent to a river. He has 240 feet of fencing available. a. Let x be the width and y be the length of the fence. Set up the appropriate equation that represents the perimeter of the fence. b. Set up a function of x that represents the area enclosed by the fence. Find the vertex of that function using the algebraic formulas. Check your work using the maximum finder on the graphing calculator. d. What dimensions of the fence would yield the largest area? e. What is the largest possible area? C. 2. Given the parabola y = 2x² - 6 and the point at the origin, (0,0). a. Let (x, y) be a function on the parabola. Explain why the distance from the origin to that point is d = b. Construct a function f (x) that represents the distance from the origin to a point on the parabola. c. Construct a graph of that function. d. Use the minimum finder on the graphing calculator to identify the local minimum. e. Determine the point on the graph of the parabola that is closest to the origin. Round the coordinates to two decimal places. f. Determine the shortest distance from the origin to the parabola. Vx2 + y2
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