Use Descartes' Rule of Signs to Determine the Possible Number $$P ( x ) = - 5 x ^ { 4 } + 4 x ^ { 3 } - 7 x ^ { 2 } + 5 x - 4$$

question 33

Multiple Choice

Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the possible number of negative
real zeros for the function.
- $$P ( x ) = - 5 x ^ { 4 } + 4 x ^ { 3 } - 7 x ^ { 2 } + 5 x - 4$$

• A) 0 , 2, or 4 positive; 0 , 2 , or 4 negative
• B) 0 or 2 positive; 0,2 , or 4 negative
• C) 0 or 2 positive; 0 negative
• D) 0,2 , or 4 positive; 0 negative

Understand how changes in supply and demand affect market equilibrium.

Recognize how government interventions, like subsidies and price controls, influence market outcomes.

Identify the factors leading to shifts in supply and demand curves.

Describe the consequences of price ceilings and floors on market equilibrium and stakeholders.

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