Determine If the Equation $x ^ { 2 } + y ^ { 2 } = 49$

question 81

Multiple Choice

Determine if the equation $x ^ { 2 } + y ^ { 2 } = 49$ defines y as a function of x

• A) The equation represents a function because it's a circle
• B) The equation represents a function because for each value of x there is always two values of y
• C) Not a function because the equation gives two values of y for a given value of x
• D) The equation represents a function because it passes the vertical line test
• E) Not a function because the equation passes the vertical line test.

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Definitions:

Fixed Cost

Costs that do not vary with the level of production or sales, such as rent, salaries, or insurance.

Lawn-mowing

The action or process of cutting the grass of a lawn, typically using a lawn mower.

Perfectly Competitive

A market structure characterized by many buyers and sellers, all of whom have full information and the products are perfect substitutes.

Output

Output refers to the total amount of goods or services produced by a company, industry, or economy within a certain period, often used as a measure of productivity or economic activity.