Question

http://i.imgur.com/zcQ0E2W.png

Answer 1

@ganeshie8

Answer 2

Imagine you're in a hole. we can think of negative numbers as how many feet you're down a hole

Answer 3

-7 could represent 7 feet down a hole

Answer 4

@ganeshie8

I see you've got this handled but I just to say that I love your use of imagery haha.

Answer 5

*just want to

Answer 6

would one of my answer be {x:x<-7}?

Answer 7

thanks haha! no, if you're "exactly" at 7 feet down that hole, you cannot say that you're less than 7 feet down a hole.

for example, if you're exactly 7 feet tall, is it correct to say that you're more than 7 feet tall ?

Answer 8

so that observation allows us to eliminate below option, lets look at other options

Answer 9

then A and D

Answer 10

Excellent! you got it!

Answer 11

thanx

Answer 12

np