Math Problem Statement

Find the break-even point(s) for the revenue and cost functions below. Separate multiple answers with a comma.

R(x)=472.80x−4x2C(x)=12x+7464.60

Solution

To find the break-even point(s) for the given revenue and cost functions, we set the revenue function equal to the cost function and solve for xx.

Given: R(x)=472.80x4x2R(x) = 472.80x - 4x^2 C(x)=12x+7464.60C(x) = 12x + 7464.60

The break-even point occurs where R(x)=C(x)R(x) = C(x). So, we set up the equation: 472.80x4x2=12x+7464.60472.80x - 4x^2 = 12x + 7464.60

  1. Rearrange the equation: 472.80x4x212x7464.60=0472.80x - 4x^2 - 12x - 7464.60 = 0 Simplify terms: 4x2+460.80x7464.60=0-4x^2 + 460.80x - 7464.60 = 0

  2. Rewrite as a standard quadratic equation: 4x2460.80x+7464.60=04x^2 - 460.80x + 7464.60 = 0

  3. Solve for xx using the quadratic formula: x=b±b24ac2ax = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} where a=4a = 4, b=460.80b = -460.80, and c=7464.60c = 7464.60.

  4. Calculate the discriminant: b24ac=(460.80)24×4×7464.60b^2 - 4ac = (-460.80)^2 - 4 \times 4 \times 7464.60

  5. Find the values of xx:

Let's perform the calculations.The break-even points are at x=95.7x = 95.7 and x=19.5x = 19.5.

Would you like further details or have any questions?

Here are some related questions to explore:

  1. How do we interpret the meaning of multiple break-even points in this context?
  2. What happens to the profit at values of xx between the break-even points?
  3. How would the break-even points change if the cost function had a different slope?
  4. How can we verify the solution by substituting back into the original equations?
  5. How does the discriminant affect the type and number of solutions?

Tip: Remember that break-even points indicate where revenue exactly matches costs, meaning no profit or loss.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Algebra
Quadratic Equations
Revenue and Cost Functions
Break-Even Analysis

Formulas

Quadratic equation formula: ax^2 + bx + c = 0
Revenue function: R(x)
Cost function: C(x)
Break-even condition: R(x) = C(x)

Theorems

Quadratic Formula

Suitable Grade Level

Grades 10-12