If $x ^ { 2 } + y ^ { 2 } = 25$

question 9

Multiple Choice

If $x ^ { 2 } + y ^ { 2 } = 25$ find the value of $\frac { d y } { d x }$ at the point (3, 4) .

• A) \(\frac { 3 } { 5 }\)
• B) \(- \frac { 3 } { 5 }\)
• C) \(- \frac { 4 } { 5 }\)
• D) \(\frac { 3 } { 4 }\)
• E)0
• F)1
• G) \(\frac { 4 } { 5 }\)
• H) \(- \frac { 3 } { 4 }\)

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Definitions:

Real Exchange Rate

A measure that compares the relative prices of goods and services between countries, adjusting for differences in price levels.

Loanable Funds

The money available for borrowing in the financial market.

Equilibrium Rate

The price or point at which the quantity of a good or service supplied matches the quantity demanded.

Loanable Funds

The market where savers supply funds for loans to borrowers, often influenced by interest rates.