### Home > INT2 > Chapter 11 > Lesson 11.2.2 > Problem11-71

11-71.

Use the system below to answer each question.

$y = - x$
$x^2 + y^2 = 8$

Use substitution.

1. Algebraically solve the system.

$(2, -2)$

2. To check your answer to part (a), graph the system.

The line should intersect the circle in two places.