The Solution Set of the System $y _ { 1 } = - x + 5$

question 135

Multiple Choice

The solution set of the system $y _ { 1 } = - x + 5$ and $y _ { 2 } = - 2 x + 7$ is $\{ ( 2,3 ) \}$ . Using slopes and $y$ -intercepts, determine which of the two calculator-generated screens, left or right, is the appropriate one for this system.

• A) Left
• B) Right
• C) Neither is correct.
• D) Both could be correct.