Answer
y+1=1(x-1)
y=x-2
Work Step by Step
m=$\frac{y_2-y_1}{x_2-x_1}$
m=$\frac{-4+1}{-2-1}$
m=$\frac{-3}{-3}$
m=1
y-y$_1$=m(x-x$_1$)
y-(-1)=1(x-1)
y+1=1(x-1)
This is point-slope form.
y+1=1(x)-1(1)
y+1=x-1
y+1-1=x-1-1
y=x-2
This is slope-intercept form.