Math Problem Statement

Substitute x = 2000 into the quadratic equation y' = -0.03807692415x^2 + 152.74523902x - 153180.8703 and calculate the result.

Solution

We are tasked with substituting x=2000x = 2000 into the quadratic equation:

y=0.03807692415x2+152.74523902x153180.8703.y' = -0.03807692415x^2 + 152.74523902x - 153180.8703.

Step 1: Substitution of x=2000x = 2000

We substitute x=2000x = 2000 into the equation:

y=0.03807692415(2000)2+152.74523902(2000)153180.8703.y' = -0.03807692415(2000)^2 + 152.74523902(2000) - 153180.8703.

Step 2: Calculating Each Term

  1. Compute (2000)2(2000)^2:

20002=4000000.2000^2 = 4000000.

  1. Multiply by 0.03807692415-0.03807692415:

0.03807692415×4000000=152307.6966.-0.03807692415 \times 4000000 = -152307.6966.

  1. Multiply 152.74523902×2000152.74523902 \times 2000:

152.74523902×2000=305490.47804.152.74523902 \times 2000 = 305490.47804.

  1. Combine all terms:

y=152307.6966+305490.47804153180.8703.y' = -152307.6966 + 305490.47804 - 153180.8703.

Step 3: Final Calculation

Now perform the addition and subtraction step by step:

  1. Add 152307.6966-152307.6966 and 305490.47804305490.47804:

152307.6966+305490.47804=153182.78144.-152307.6966 + 305490.47804 = 153182.78144.

  1. Subtract 153180.8703153180.8703:

153182.78144153180.8703=1.91114.153182.78144 - 153180.8703 = 1.91114.

Final Answer:

y=1.91114y' = 1.91114

Let me know if you need further clarifications or detailed steps!


Related Questions:

  1. How do you solve a quadratic equation for any value of xx?
  2. What are the applications of quadratic functions in real-life problems?
  3. How can you determine the vertex of a quadratic equation?
  4. What is the process for factoring a quadratic equation?
  5. How do you find roots of a quadratic equation using the quadratic formula?

Tip:

When substituting into equations, calculate each term separately to avoid errors. This ensures clarity and accuracy in results.

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Math Problem Analysis

Mathematical Concepts

Algebra
Quadratic Equations
Substitution
Evaluation of Quadratic Functions

Formulas

y' = -0.03807692415x^2 + 152.74523902x - 153180.8703

Theorems

Substitution method

Suitable Grade Level

Grades 9-12