Question

Using points (0,-5) and (1,-4) find the equation of the line as y =mx + b

Answer 1

then use point slope equation
y-y1=m(x-x1)
where you can use x1 and y1 from any of the points and I already told u how to find m-slope

Answer 2

m=(y2-y1)/(x2-x1)

Answer 3

m=(y2=y1)/(x2-x1)
yep it looks like @Romero is right

Answer 4

can you confirm my answer y = 1/1x -5

Answer 5

yea just leave out 1/1

Answer 6

1/1- 1 and anything times 1 is itself