Refer to the Graph Shown

question 21

Multiple Choice

Refer to the graph shown. The difference between total surplus in equilibrium and total surplus when price is $8.15 and quantity is 220 is:

• A) 405.
• B) 423.5.
• C) 600.
• D) 810.

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Definitions:

Completing The Square

A method used to solve quadratic equations by converting the equation into a perfect square trinomial.

Quadratic Equation

A quadratic equation is represented as ax^2 + bx + c = 0, with a, b, and c being constant values and a not equal to zero.

Quadratic Formula

A formula used to find the solutions of a quadratic equation, given as \(x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}\).

Quadratic Formula

A formula that provides the solutions to a quadratic equation in terms of its coefficients.