(0,4),(-1,-3)

What is your question?

(0 , 4), (-1 , -3).

m = (-3 - 4) / (-1 - 0) = -7 / -1 = 7.

y= mx + b.

4 = 7*0 + b,
b = 4.

Eq: Y = 7X + 4.