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this video relook at how-to
used thirty eight forty graph piecewise defined function and then use that
function
calculates and values
here's our piece was defined function
in vancouver graphing calculator
they were going to go into the white mls
the photograph exporter minus four and will be all this
in the standard when mister we might change it as we go
susan sex lies but she was tinted window
i get the whole function
the wiki spoke by phone to experience
it's only expert minus one point x is less than negative one
sonicview put that in their so that's where we show you how to do
now
parentheses are going to be a very important here's what to do is a man
inserts
preference in before the export
enclose the presidencies after the one
didn't know open senate parentheses because i need to give it that
restriction the access to be less than negative one
so what do you find that
is under above the math keys
test which is above the upkeep
and as a lawyer inequalities
we have strictly less than negative
enclose the spread seasonal we'll see what happens when regret
notice we only get the piece this to the left of negative one
so that so we do that first piece
nynex partly as your own between negative warm into
now because you won't be able to see it behooves graphing calculator i'm gonna
grab something a little different
uh... for now
those changes here we go to evaluator functional of students uh... negative
one from anyone did too
we want you to see that piece of the graph
so i go down here info putting it is a constant i don't need the parentheses
so you made one for now i guess i don't think that back to zero when we go to
evaluate the function i just want to see the peace the graph
now the one thing that's different
we cannot put negative one less than or equal x listened to altogether we have
to do in both separate
so we do negative one
revert second tests
less than or equal to the number six
dinner acts
they close the proceeds
and open another set
to do next lesson too
so x
second
tests
strictly less than his number five
let's take a look at our draft now
and they're put in the line again
reason i did that so you can see graph is integrated zero he will do is to be
read on the x-axis
our last piece
got a pretty good idea of how this is going to go there when he's parentheses
and we have for
x
minus four
here's our phone as their peace of the function in there
and then this is for x
second
tests
greater than is number three
and we should have all our pieces in that
immediately repeats appear
now i have a videos well for doing things by hand so you can compare the
two graphs
what we need to do you think you need to put them back to zero before we started
valuating
and now he's
so i'm going to just go in here
change that to zero
you need to do with that one
in quebec for breath
being and there's a reviews the any can really see that peace forty four zero as
is the extent acceptance
what we can do
to calculate those values
now we're going to the second part
they asked for f of negative three that's the output
when x equals negative three-c_d_ second calculate value
negative three
can't you get paid
we can do that again for each of these implants subsiding
calculate
value
negative one
let me get zero
because mixes equal to negative one
the function is here
was changed its law must make sure we get our values
evaluate that zero
also is europe
second
calculate
valued
and skew
gives us is zero
and this is something that the wary of whom can always trust the calculator
because
within our function is undefined it too
you got a little bit careful about that
we calculated he respects your butt
technically our function is undefined it too
sometimes calculator does arise give us the right answer
muscular last word second calculate
value at three
in
numbers he gives us zero-g_ and she's not correct
on the wrong piece of the function
to actually be appear
so calculating the values with the graphing calculator you do that to be a
little bit careful
graphing calculator
is loaded from head injuries that piece was different function
tim portent that you know
which pc one appeal
that some of the graph with the paragraph piecewise define function with
the correct in calculator
mister
fund values can be a little tricky sometimes it may be easier to just do it
by hand but it can be done with the graphing calculator