Choose whatever 2 points you want and you will always get the same slope. Calculate the rise and run.
Hoped this helped :)

Answer : This is because when 5z minus 5z, it is nullified, with no way to determine the value of z. 5z - 5z = 0
That is why there is no solution for this equation.
Hope this helps. - M
Horizontal means zero slope, or a zero coefficient on x.
Answer: y = b
Answer -4/27
-1/9 x 4/3 will give you -4/27
Is this a multiple choice question?