Question

What is the equation of the line that passes through the points (2, –1) and (6, 1)?

A. y=1/2x-2
B. y=2x-5
C. y=-1/2x-1
D. y=-2x-3

Answer 1

y=kx+b
2k+b=-1
6k+b=1
6k+b-2k-b=2
4k=2
k=1/2
b=-2
y=1/2x-2
So your answer is option A