False, they have a different slope and y intercept
Answer:



This might not be correct though. I'm only in middle school lol. I am sure about the last one.
Let g be the number of grandchildren, and d be the number of dogs. They both have only one head, so the number of heads is

Grandchildren have 2 legs, while dogs have 4. So, the total number of legs is

From the first equation (the one for the heads) we can derive

Substitute this into the second to get

So, there are 9 dogs and (from the first equation


Step-by-step explanation:
yes