1) Since we need a Linear function that passes through point (-1,-1) with a slope of -2
Let's use the slope-intercept formula y=mx+b an plug the slope and point (-1,-1)
to find the linear coefficient (b)
y =mx +b
-1=-2(-1) +b
-1=2+b
-1-2=b
b=-3
2) Therefore we can write our function as
y= -2x -3