The correct answer is the first option, which is: y=(-4/3)+2
The explanation is shown below:
You have that the equation of the line is
y=mx+b
Therefore, you have that the slope of the line is:
m=(y2-y1)/(x2-x1)
m=(6+2)/(-3-3)
m=-4/3
And the y-intercept b is 2