They have a comma in front of the third number for example, 12,345 there is a in front of this third number
5/6 is an answer to this question.....
Because if you multiply 2 different irrational numbers (like the following)

You will get an irrational answer.
BUT
if you multiply the same square root (which are both irrational, you get a rational number)
Answer:
(0,1)
Step-by-step explanation:
The equation for slope is y=mx+b.
The b value stands as the y - intercept.