Use Descartes' Rule of Signs to Determine the Possible Number

question 120

Multiple Choice

Use Descartes' Rule of Signs to determine the possible number of positive and negative zeros of .

• A) 3 positive reals or 1 positive real; 3 negative reals or 1 negative real
• B) 3 positive reals or 1 positive real; no negative reals
• C) 0 positive real; 3 negative reals or 1 negative real
• D) 1 positive real; 3 negative reals or 1 negative real
• E) no positive reals; no negative reals

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Definitions:

Law of Size Constancy

The perceptual principle stating that our perceptions of the size of objects remain constant despite changes in the size of the images they cast on our retinas due to distance.

Visual Angle Theory

The concept that the perception of an object's size is determined by its visual angle and the distance from the observer.

Retinal Image Theory

The hypothesis that the retina captures visual images like a camera, which are then processed by the brain.

Perceptual Constancy

A feature of perception in which physical objects are perceived as unvarying and consistent despite changes in their appearance or in the physical environment.