Question

How to solve these problems & what's the answer.
Explain!

Answer 1

55)
slope = 1, b = -1
equation
y = x -1

56)
slope = (-3+4)/(1) = 1
b = -4
equation
y = x - 4

57)
slope = (3+1)/(1-0) = 4
b = -1
equation
y = 4x - 1