Chapter 4 - Quadratic Functions and Equations - 4-8 Complex Numbers - Practice and Problem-Solving Exercises - Page 255: 84

$y = -0.5x - 2$

Use the slope-intercept form, which is given by the formula $y = mx + b$, where $m$ is the slope and $b$ is the $y$-intercept. With $m=-0.5$ and $b=-2$, substitute these values given into this formula: $y = -0.5x + (-2)$ Simplify to obtain: $y = -0.5x - 2$