copy/paste link for problem.(its safe) the problem involves graphs

http://gyazo.com/36b7999c19ade2c0e3ea8e21ea92b2f2

Question

copy/paste link for problem.(its safe) the problem involves graphs

http://gyazo.com/36b7999c19ade2c0e3ea8e21ea92b2f2

anonymous · Answer

oh sorry

anonymous · Answer

Did you understand it?

anonymous · Answer

the graph is exactly how it appears in that picture

anonymous · Answer

δ does not equal 10/7
tried that answer already

anonymous · Answer

I just tried typing in 10/7 as the largest value of δ possible. It marked me incorrect.

phi · Answer

|x-2| can be interpreted as the distance x is from 2.  the biggest distance you can move to the left is 2-10/7  or 4/7

anonymous · Answer

4/7! once again thank you phi!!

anonymous · Answer

how you got the answer so fast i will never know

phi · Answer

I told you:  |x-2| is the distance x is from 2.  the furthest x can go to the left is 10/7 (4/7 away).  the furthest x can go to the right is 10/3-2= 4/3   
but we have to pick the smallest distance (to the left)

phi · Answer

because we must be able to go x-d up to x+d