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anonymous
 one year ago
How do you determine when to use addition or subtraction when solving an absolute value inequality using a graph?
anonymous
 one year ago
How do you determine when to use addition or subtraction when solving an absolute value inequality using a graph?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I thought distance was always supposed to be negative, but some of the answers to my questions use a positive.

LynFran
 one year ago
Best ResponseYou've already chosen the best response.0no distance is always positive

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The answers use negatives.

LynFran
 one year ago
Best ResponseYou've already chosen the best response.0because we are talking about absolute values .... we usually get 2 answers one is positive and one is negative..

LynFran
 one year ago
Best ResponseYou've already chosen the best response.0@DecentNabeel wat do u think..?

triciaal
 one year ago
Best ResponseYou've already chosen the best response.0distance is always a positive unit of measure between 2 points

LynFran
 one year ago
Best ResponseYou've already chosen the best response.0for absolute .... example x+3=5 then (x+3)=+5 and (x+3)=5

triciaal
 one year ago
Best ResponseYou've already chosen the best response.0one approach to doing absolute value problems is to split in 2 the positive and the negative solve each then find the combined solution

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I'm not solving an actual absolute value inequality, I am trying to write absolute value inequalities using a graph.

triciaal
 one year ago
Best ResponseYou've already chosen the best response.0solve each and put the results on the same graph to see the final solution

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0There is nothing to solve. I already have the graphs, and am working backwards to find the inequality.

freckles
 one year ago
Best ResponseYou've already chosen the best response.2\[\text{ assume } a \text{ is positive } \\ xc \le a \text{ means we are shading the interval }[ ca , c+a] \\ xc \ge a \text{ means we are shading everything outside the interval } (ca,c+a)\]

triciaal
 one year ago
Best ResponseYou've already chosen the best response.0dw:1440897882997:dw

triciaal
 one year ago
Best ResponseYou've already chosen the best response.0dw:1440898166918:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I don't need to solve it. The answer was x+9<3 I need to know when to use addition or subtraction when solving from a graph.

freckles
 one year ago
Best ResponseYou've already chosen the best response.2\[ \text{ assume } a \text{ is positive } \\ xc \le a \text{ means we are shading the interval }[ ca , c+a] \\ xc \ge a \text{ means we are shading everything outside the interval } (ca,c+a)\] dw:1440898355091:dw dw:1440898407502:dw I have added drawings in case you didn't understood my words

freckles
 one year ago
Best ResponseYou've already chosen the best response.2notice in the first graph you put c=9 and a=3 the second one you have c=1 and a=2

freckles
 one year ago
Best ResponseYou've already chosen the best response.2i think a couple of my a's above looks like 2's but they are a's

freckles
 one year ago
Best ResponseYou've already chosen the best response.2dw:1440898758376:dw

freckles
 one year ago
Best ResponseYou've already chosen the best response.2dw:1440898823346:dw can you guess how to represent this

freckles
 one year ago
Best ResponseYou've already chosen the best response.2we have open circles so we don't want an equality thing in there at all we also want a < symbol since our shading is between the numbers now the first thing to notice is the center number which is 5 that is our c and a is how far the exterior numbers are away which is 2 x(5)<2 x+5<2

freckles
 one year ago
Best ResponseYou've already chosen the best response.2dw:1440899046041:dw

freckles
 one year ago
Best ResponseYou've already chosen the best response.2let's try another one dw:1440899271018:dw*

freckles
 one year ago
Best ResponseYou've already chosen the best response.2I made a typeo and you still figured out

freckles
 one year ago
Best ResponseYou've already chosen the best response.2dw:1440899357439:dw yes the center number is 3.5 so you c is 3.5 and 3.5 is 4.5 units from 8 and 3.5 is 4.5 units from 1 so we have \[x3.5 \le 4.5\]

freckles
 one year ago
Best ResponseYou've already chosen the best response.2dw:1440899526070:dw the center number here is 5 and your a is 1 since both 4 and 6 are 1 unit from 5 \[x5 >1\]

freckles
 one year ago
Best ResponseYou've already chosen the best response.2anyways do you have any questions?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0But how do you know when to write the inequality as a negative or a positive?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Like, you had x5>1 and x+5<2 How do you know when to put negative and positive

freckles
 one year ago
Best ResponseYou've already chosen the best response.2we only had x5>1 for previous one

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yes, but how did you know to put a negative.

freckles
 one year ago
Best ResponseYou've already chosen the best response.2x(5)>1 would be right if 5 was at the center and to the right you had 5+1 and to the left you had 51 instead

freckles
 one year ago
Best ResponseYou've already chosen the best response.2x5>1 means x5<1 or x5>1 which means x<4 or x>6 dw:1440899857523:dw

freckles
 one year ago
Best ResponseYou've already chosen the best response.2x5>1 looks like this: dw:1440899886515:dw while x(5)>1 looks like this: dw:1440899916458:dw

freckles
 one year ago
Best ResponseYou've already chosen the best response.2by the way x(5)>1 is the same as saying x+5>1 since (5)=+5

freckles
 one year ago
Best ResponseYou've already chosen the best response.2xc<=a says we want all numbers a units away from c in both directions

freckles
 one year ago
Best ResponseYou've already chosen the best response.2and yes c can be a positive or negative number

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ohhhhh! I finally understand!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thanks for your help!
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