Factor Using the Trial and Error Method
- $$10 y ^ { 2 } + 21 y + 9$$

question 120

Multiple Choice

Factor using the trial and error method
- $$10 y ^ { 2 } + 21 y + 9$$

• A) \(10 y ^ { 2 } + 21 y + 9\)
• B) \(( 10 y + 3 ) ( y + 3 )\)
• C) \(( 2 y + 3 ) ( 5 y + 3 )\)
• D) \(( 2 y - 3 ) ( 5 y - 3 )\)

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Definitions:

Marginal Revenue Curve

A graphical representation showing how marginal revenue varies as the quantity of output produced changes.

Purely Competitive Firm

A business that operates in a market with infinite buyers and sellers, no barriers to entry, and a standard product, leaving the company as a price taker.

Unitary Elasticity

A situation in economics when a change in the price of a product leads to an equal proportionate change in the quantity demanded or supplied.

Marginal Revenue

The additional income received from selling one more unit of a good or service; it is an important concept for determining the optimal level of output for a company.