Example Code Ch 12-3

question 10

Multiple Choice

Example Code Ch 12-3
Given the two recursive methods shown below, foo and bar.
Assume int[] a = {6, 2, 4, 6, 2, 1, 6, 2, 5}
public int foo(int[] a, int b, int j)
{
if (j < a.length)
if (a[j] != b) return foo (a, b, j+1) ;
else return foo (a, b, j+1) + 1;
else return 0;
}
public int bar(int[] a, int j)
{
if (j < a.length)
return a[j] + bar(a, j+1) ;
else return 0;
}
-Refer to Example Code 12-3: What is the result of calling foo(a, 3, 0) ?

• A) 0
• B) 1
• C) 2
• D) 3
• E) 4

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Definitions:

Long-Run Supply Curve

A graph that shows the relationship between the price of a good and the quantity supplied by all firms in the market, assuming all inputs are variable and firms can enter or exit the market.

Elasticity

Elasticity measures how responsive the quantity demanded or supplied of a good or service is to a change in one of its determinants, such as price, income, or prices of related goods.

Constant-Cost Industry

An industry where the input prices remain stable as the industry's output changes, leading to a linear supply curve because costs do not vary with the level of production.