Answer:
f(x) = x² - 9x + 18
General Formulas and Concepts:
<u>Algebra I</u>
- Standard Form: ax² + bx + c = 0
- Binomial Roots: (x + a)(x + b)(x + c)(x + ...)
- Expanding by FOIL-ing (First, Outside, Inside, Last)
Step-by-step explanation:
<u>Step 1: Define</u>
Zeros/Roots x = 3, 6
<u>Step 2: Find Function</u>
- Rewrite Binomial Roots: f(x) = (x - 3)(x - 6)
- Expand by FOIL-ing: f(x) = x² - 6x - 3x + 18
- Combine like terms (x): f(x) = x² - 9x + 18
We got the value of by solving the given equations and by reduction method.
<h2>
What is reduction method?</h2>
The reduction or elimination approach includes using arithmetic operations between equations to produce equivalent equations with fewer unknowns that are simpler to analyze and evaluate.
Given equations are
.........(1)
...........(2)
We need to find the value of
Simplifying the given equation (2) and we get
................(3)
Now, substitute the equation (3) in equation (1) and we get
Substitute the value of x in equation (3), we get
Now adding the values of x and y, we get
Therefore, the value of .
To learn more about reduction method from the below link:
brainly.com/question/13107448
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I would assume that poorville and richville would balance out so it would come out to around 75k (if you were talking about what the income would be) in mediumville