Quadratic Regression Word Problems

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SUMMARY

The discussion centers on solving a quadratic regression problem related to maximizing the area of a rectangular parking lot using 1000 yards of fencing. The correct approach involves setting up the perimeter equation as \( l + l + w = 1000 \), where \( l \) is the length and \( w \) is the width. The area is expressed as \( A = l \times w \), leading to the quadratic equation \( A = -2l^2 + 1000l \). The maximum area is determined to be 125,000 square yards with dimensions of 250 yards by 500 yards.

PREREQUISITES
  • Understanding of quadratic equations and their properties
  • Familiarity with the concept of maximizing area using calculus
  • Ability to use graphing calculators, specifically the TI-83
  • Knowledge of basic algebraic manipulation and perimeter calculations
NEXT STEPS
  • Study the derivation of the area formula for rectangles and its application in optimization problems
  • Learn how to use the TI-83 calculator for quadratic regression analysis
  • Explore calculus concepts related to finding maximum and minimum values of functions
  • Practice solving similar word problems involving optimization and quadratic equations
USEFUL FOR

Students studying applied mathematics, particularly those focusing on optimization problems, as well as educators teaching quadratic functions and their applications in real-world scenarios.

  • #31
Then why do you care what x is?
 
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  • #32
i don't I am just asking if 250 250, 500 is the right asnwer
 
  • #33
Then why did you ask what x is in post 18?

Reread post 17.
 
  • #34
cuz i wanted to know more but whatever is that the right answer or not because i have a history and math test to study for and i have 4 hrs
 
  • #35
Figure it out.

I'll point out that if you bothered to understand the simple math behind what's going on, you wouldn't have to worry about whether you have the right answer or not. You'd be able to see whether it's correct or not on your own.
 
  • #36
o my gosh so i spent hrs asking a question to be told to figure it out myself this website sucks, how do i delete my account
 
  • #37
My point is that whether anyone tells you if your answer is right or wrong does absolutely nothing to help with your understanding. You're not going to have someone to ask during a test whether you did a problem right or not.

We've all tried to help you understand how to analyze the problem, but you've plainly stated you're not interested in learning that. If you don't want to learn it — which is a perfectly fine choice to make — we can't do anything about that. By the same token, none of us here is really interested in simply checking that you know how to use your calculator.

If you think you've done everything right, just go with the answer you got.
 
  • #38
i learn differently everyone does, so just tell me if I am right or not please
 

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