[tex]\huge\boxed{\text{B}}[/tex]
Slope-intercept form is [tex]y=mx+b[/tex], where [tex]m[/tex] is the slope and [tex]b[/tex] is the y-intercept.
In this case, we need to look for the equation with [tex]m=-2[/tex].
The only equation with a slope of [tex]-2[/tex] is [tex]\boxed{y=-2x+(-1)}[/tex].
