Answer:
B
Step-by-step explanation:
When you add a zero to the problem, it shows you are now multiplying in the double-digits. Let's say you are multiplying 12x12. First you cover up the one then multiply them. Then cover up the two and you have 10. When you multiply them, it ends in a zero. Don't think of it as adding a zero but adding to products.
The answer is b since it does not touch the origin! (0,0)
I think i know the answer to that question. just wait for a sec.
