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

it says select the "two equations" i dont know what the other one is.

Question

http://i.imgur.com/TdXpCTx.png

it says select the "two equations" i dont know what the other one is.

anonymous · Answer

@ganeshie8

anonymous · Answer

modulus requires to positive and negative solutions

anonymous · Answer

so my answers are a and b?

anonymous · Answer

like |x|<1 means x has solutions x<1 and x<-1

anonymous · Answer

yep neat

anonymous · Answer

wait

anonymous · Answer

When we have absolute values, we get two solutions, so we have $$-(2x-8)<4 ~~~~\text{and}~~~~(2x-8)<4$$

anonymous · Answer

a and c yeah they did something funny there

anonymous · Answer

follow @iambatman  solutions

anonymous · Answer

im confused af

anonymous · Answer

haha, $$-(2x-8)<4 $$ is also the same as $$2x-8>-4$$

anonymous · Answer

when you divide by a negative we usually switch the sign

anonymous · Answer

perhaps iambatman will give you a clearer explanation

anonymous · Answer

anonymous · Answer

|dw:1444559321606:dw| this is essentially what you need to know when you see absolute values