Find the Solution Set for the System by Graphing Both $$\left\{ \begin{array} { l } x ^ { 2 } + y ^ { 2 } = 25 \\25 x ^ { 2 } + 16 y ^ { 2 } = 400\end{array} \right.$$

question 59

Multiple Choice

Find the solution set for the system by graphing both of the system's equations in the same rectangular coordinate
system and finding points of intersection.
- $$\left\{ \begin{array} { l } x ^ { 2 } + y ^ { 2 } = 25 \\25 x ^ { 2 } + 16 y ^ { 2 } = 400\end{array} \right.$$

• A) \(\{ ( 0,5 ) , ( 0 , - 5 ) \}\)
• B) \(\{ ( 5,0 ) , ( - 5,0 ) \}\)
• C) \(\{ ( 0,4 ) , ( 0 , - 4 ) \}\)
• D) \(\{ ( 4,0 ) , ( - 4,0 ) \}\)

---

Definitions:

Fuzzy Trace Theory

States that memory is best understood by considering two types of memory representations: (1) verbatim memory trace; and (2) fuzzy trace, or gist. According to this theory, older children’s better memory is attributed to the fuzzy traces created by extracting the gist of information.

Verbatim Memory Trace

The detailed and precise recall of exact details, such as words or images, from memory.

Grist

Material or ideas ready to be used or turned into something valuable.

Three-dimensional

Pertaining to or having length, width, and depth.