The Following Accompanying Table Shows the Relationship Between the Speed of a Computer's

question 12

Multiple Choice

The following accompanying table shows the relationship between the speed of a computer's CPU and its benefits and costs. Assume that all other features of the computer are the same (that is, CPU speed is the only source of variation) , and only the CPU speeds listed below are available for purchase. $\begin{array}{|c|c|c|c|c}\hline \text { CPU GHz } & \text { Total Benefit } & \text { Marginal Benefit } & \text { Total Cost } & \text { Marginal Costs } \\\hline 2.0 & \$ 1,000 & & \$ 900 & \\\hline 2.5 & \$ 1,400 & & & \$ 100 \\\hline 3.0 & & \$ 300 & \$ 1,200 \\\hline 3.5 & \$ 1,900 & & \$ 1,500 & \\\hline 4.0 & \$ 2,000 & & & \$ 400 \\\hline\end{array}$  
The total cost of a 2.5GHz computer is:

• A)$1,000.
• B)$900.
• C)$200.
• D)$100.

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Definitions:

Conservation

The principle in cognitive development where a child learns that quantity doesn’t change despite the arrangement or appearance altering.

Social Mediation

Human interaction that expands and advances understanding, often through words that one person uses to explain something to another.

Zone of Proximal Development

A concept developed by Vygotsky, referring to the difference between what a learner can achieve independently and what they can achieve with guidance and encouragement from a skilled partner.

Bidirectional Function

A relationship or interaction that goes in two directions, often referring to the mutual influence two variables have on each other.