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Absolute Value Basics

Added Mar 18, 2013 •

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Reviewing the basics of absolute values

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absolute values again just like the other videos quick review not going into deep details is absolute value is about number of steps a distance and number of change of degrees Etc question did ask how many steps between -7 to positive for first thought would be to create the equation -7 surprise before like we see here  Seattle would result in negative three because we take the difference maseven in the four to get 3 in the sign of Arjun number with but if we lose think about it -7 all the way to hear Woods -3 a reasonable answer how many steps are going to take first of all negative cuz you're going to this way  and then three steps in either direction will not take you to here  so how can also how can you unstuff precept it's just not Southern Hudson logo miss another again the question State how many steps between -7 and positive for the unravel you should have already circled how many steps is being a key phrase  and then between -74 seeing another key phrase so let's look at this again if we have a negative 7 plus and the positive for we already figured that's going to give us a negative three  but we could take another way of doing this we could come up here and go from list seven going to tour plus a negative positive or we could go one two three four five six seven eight nine and 11 so now we see there's a wedding stuff  that's a reasonable answer cuz it makes a lot more sense it would take 11 steps to walk all the way down to from there to there  but is it going to be easy to count right now if you can account if you're going to negative 7 disa positive for forgiven numbers like going from negative 12-212-2 positive 87 Are you seriously going to draw an account Mommy  I know when I create the equation -7 to a positive for I get the answer of -11 I know that counting us told us it took there was 11 steps hey we need to find a better way  but there are stop we know the equation we create needs to equal 11 but again -7 plus a positive for resulted in the negative three so we know this is wrong so we've got to change it so looking at this and looking you in your past or if it's the people who did this had to find a way to wear this stop it at 11 now they can sit at 7 and 4 if you look at just the numbers equals 11 which is what the end result is  so they came the symbol called absolute value and told us not to look at the sign just look at the number since elf  so this now become 7 + 4 and we know it's 11 steps  so again we know negative plus a positive for is a -3 when we have the best food value we now look at -7 to a positive for the negative 7 to looking at Justice 7 we now 7 + 40 equals 11  doing the same sets of looking at Adams Ave place value  we can now do this in 12 over here at are bigger number over here  so is the map  we have negative 212 inside absolute value so we know we're going to Simply look at 2:12  we have play Simple defense absolute value we ignore the friend that leaves it's just a number 87 and yes we're going to add them so that now tells us to get from -212 - A+ 87th would take us 299 steps semester equation with temperature ever temperature reach 9 degrees and then drop the negative 8 how many degrees did the temperature change again when we look at our keywords we have nine degrees  truck 8 degrees  Savannah Christ how many which continues how many degrees 2 Chainz  so looking at that type of question we are help with starting to realize we're going to need at so we started off as negative not any positive night we ended up negative 8  so here's our creation when we going a positive to a negative we know we have a negative going on here  and we're in result is also a negative but we're not going to look at the size because the time I how many how many steps does it take to walk from each single one of these degrees so we're going to look at the absolute values of these numbers  so causes night plus positive 8  Kansas 17 so we know there are 17 steps and if we go back and verify which is also on a run we know to get the zero there are nine steps to get from here to here  from 0 to -8 is also eight steps and sure enough attitude together you get 17 you can also verify by actually counting since the chart the graph over here is not that big like it's negative to 12 to deposit B7  you're crazy my also look something like this you started off on the 14th floor of the basement levels which means you're a Down you're at -14 and you worked hard to move your stuff up to the 18th floor which is up here above-ground where you work today how many floors did you move through now yes you can see to get from -14 to 0 to 14 floors and from 0 to there too 18 step equations  again -14 - 0 + 0 - 18 how many total steps did you from here all the way to there so we look at our equation we know we need to go back and add our absolute value sun because sing at a distance from here to here  we did the math it's going to result 8 + 412 carry over my what's the results in 32 Ford you moved by working really hard

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Absolute Value Basics

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