Hey, nice apartment you live in. Say, how'd you decide to put your apartment where it is?
I decided to put my apartment on the 8th floor because it is generally closer to most of the facilities around here.
It was a good idea to get an apartment on the 8th floor, as almost everything is nearby.For instance, if my apartment's floor is 0, the park is only -3 floors in relation to my floor, making it 3 floors below my floor, and the supermarket is only +7 floors in relation to my floor, which makes it 7 floors above my floor. Also, the restaurant is only +9 floors is in relation to my floor, so it would be 9 floors above my floor, and finally, the bowling alley is -5 floors in relation to my floor, so it would be 5 floors below my floor.
I thought you were in your apartment and I went to go visit you. But when you weren't there, I started to go look for you.. I first decided to walk up 15 floors, then decided to walk down 9 floors because I saw you weren't there. At that point, I would have walked 32 floors at that point, because the situation can be be translated into |-8| + |15| + |-9|, and is the equivalent to 8 + 15 + 9, which equals 32, and then I found you.
To get to the lobby on the ground floor, I must walk down 8 floors, and if my floor is considered 0, then it would mean 0 + (-8) = -8, which means the lobby is 8 floors beneath my apartment's floor. On a number line, this would be represented as:
I'm sorry; I was taking a walk, so here is a little advice; If my apartment was 0, then to get to the roof you must walk 0 + 12 = 12, or walk 12 floors up from my floor. On a number line, this can be represented as:
Today, I was thinking we can go to the restaurant for lunch, and then later we can go to the bowling alley. If your floor was 0, and we were currently there, we would have to walk 9 floors above your floor to the restaurant, and then 14 floors below the restaurant to get to the bowling alley, and in number form this is would be the equivalent to 9 + (-14) = -5, which means we'll later be 5 floors under your floor at the bowling alley. This can be represented on a number line as: