Question

through (-3-1) parallel to y=x-4

Answer 1

parallel means same slope ok

Answer 2

so the slope of y=x-4 is 1

Answer 3

now you use (-3,-1)
y=slope(x-x1)+y
y=1x-(-3)-1
y=x+3-1
y=x+2..... check my work to be sure ok =)