The last one (0,0) the middle of the graph is always (0,0)
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:
8
x
−
3
Hope this helps, if it does please give brainliest
Answer: 18 c
Step-by-step explanation: since they have the same variables you can easily just add them together