Use a Graphing Calculator to Solve the System $$\frac { 9 } { 7 } x + y = 5$$

question 480

Multiple Choice

Use a graphing calculator to solve the system. Express solutions with approximations to the nearest thousandth.
- $$\frac { 9 } { 7 } x + y = 5$$
$0.4 x - y = 3$

• A) \(\{ ( 4.746 , - 1.102 ) \}\)
• B) \(\{ ( 2.258,2.097 ) \}\)
• C) \(\varnothing\)
• D) \(\{ ( - 2.947,8.789 ) \}\)

---

Definitions:

Savings Programs

Financial plans or accounts that encourage saving by offering interest or other benefits.

Neoclassical Models

Economic models based on the principles of neoclassical economics that emphasize rational behavior, supply and demand equilibrium, and the efficiency of markets.

Behavioral Economics

A field of economics that studies how psychological, cognitive, emotional, cultural, and social factors affect the economic decisions of individuals and institutions.

Nudges

Subtle policy or design changes aimed at influencing people's behavior in predictable ways without restricting their choices.