Use a Graphing Utility to Solve the System of Equations

question 423

Multiple Choice

Use a graphing utility to solve the system of equations. Express the solution rounded to two decimal places.
-

• A)x = -1.37, y = 2.14 or (-1.37, 2.14)
• B)x = 2.14, y = 1.37 or (2.14, 1.37)
• C)x = 1.37, y = 2.14 or (1.37, 2.14)
• D)x = 2.14, y = -1.37 or (2.14, -1.37)

---

Definitions:

Confidence Interval

A confidence interval is a range of values, derived from sample data, that is likely to contain the true value of an unknown population parameter with a specified level of confidence.

Sample Size

The number of participants, observations, or data points collected in a study, important for ensuring the statistical validity and reliability of the research findings.

Larger Sample Size

A methodological strategy in research that involves increasing the number of participants to enhance the reliability and validity of the study's outcomes.

Cluster Sampling

A method of sampling in which the population is segmented into different groups, and from these groups, a few are randomly chosen for analysis.