Mathematics
6 Online
OpenStudy (anonymous):
what is the domain of the graoh please explain how to do this..
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OpenStudy (anonymous):
jimthompson5910 (jim_thompson5910):
Domain: set of all allowed inputs or x values
jimthompson5910 (jim_thompson5910):
so all you need to do is list all the x values of each point
OpenStudy (anonymous):
oooh ok let me se if i can get this..
OpenStudy (anonymous):
um what is the x value?
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jimthompson5910 (jim_thompson5910):
any point is in the form (x,y)
jimthompson5910 (jim_thompson5910):
for example, the point (2,3) has the x coordinate of 2
jimthompson5910 (jim_thompson5910):
a point is like an address, it gives it a unique place on the coordinate grid
OpenStudy (anonymous):
do i look at the horizontal part first or the vertical?
jimthompson5910 (jim_thompson5910):
not sure what you mean
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jimthompson5910 (jim_thompson5910):
To plot (2,3), you start at the origin. Then you go 2 units to the right (along the x axis) and you then go 3 units up and you'll arrive at (2,3)
OpenStudy (anonymous):
like how do i find the domain of the point on the graph?
jimthompson5910 (jim_thompson5910):
List all the x coordinates of those points for me
OpenStudy (anonymous):
uum could you give me the domain for c so i have an idea aboiut what im suppose to do?
jimthompson5910 (jim_thompson5910):
what point is point C
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jimthompson5910 (jim_thompson5910):
where is point C located on the coordinate grid
OpenStudy (anonymous):
-2,3?
jimthompson5910 (jim_thompson5910):
the x coordinate of this point is ____
OpenStudy (anonymous):
uuum-2?
jimthompson5910 (jim_thompson5910):
so that is one number in your domain
you must do this with all of the points listed
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OpenStudy (anonymous):
-2,0,4,-1,1? is that right?
jimthompson5910 (jim_thompson5910):
look at point A again
jimthompson5910 (jim_thompson5910):
the x coordinate of point A is ____
OpenStudy (anonymous):
3
jimthompson5910 (jim_thompson5910):
so that 4 in that list above should be a 3 instead
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jimthompson5910 (jim_thompson5910):
you can then sort the numbers to get
-2, -1, 0, 1, 3
So the domain is the set {-2, -1, 0, 1, 3}
OpenStudy (anonymous):
-2,0,3,-1,1
jimthompson5910 (jim_thompson5910):
good
OpenStudy (anonymous):
got it thanks!
jimthompson5910 (jim_thompson5910):
np