Question

Slope ​m ​ = -2 and ​y ​ -intercept ​b ​ = -1

Answer 1

y = mx + b,  is the equation you will be following.

Information given:
m = -2
b = -1

plug in -2 for m, and -1 for b

y = -2x - 1

y = -2x - 1 is your equation.

hope this helps

Answer 2

Y = -2m -1 is your equation