Asked by Anonymous

True or false:
a. |3x-5|=|2x+4| if and only if 3x-5=2x+4 or 3x-5= -(2x+4) ______
b. |2x+7|=-4 if and only if 2x+7=4 or 2x+7=-4 ______

how do you do these and what's the answer?
thanks
Answered by bobpursley
b. How can abs () ever be negative?
a. Isn't that the definition of what happens in an abs function?

Answered by Anonymous
but is it true or false?
Answered by Anonymous
The abs are || and the () are parantheses
Answered by bobpursley
You have to do your own thinking. I gave you the answer. If something is the definition, it must be true.

Online, absolute function is written abs(xxxx) where xxxx is the argument.


Wasn't this a summer assignment, due in the upcoming week?
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