#### Answer

y=-2

#### Work Step by Step

The question defines two variables for the line. The slope (m), and the y-intercept (b): m=0 and b=-2. In order to write the equation for a line containing those requirements, one must use the slope-intercept form: y=mx+b.
1. y=mx+b
2. Plug in known values: y=(0)x+(-2)
3. Simplify: y=-2.
Because the slope is zero, this is a horizontal line with a y-intercept at -2.