anonymous
  • anonymous
how do you sketch a graph and use the Pythagorean therom
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
lochana
  • lochana
Can you provide an example?
anonymous
  • anonymous
there is no example...
lochana
  • lochana
How did you come to know all these things? teacher ? If so explain what did she/he do in class?

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anonymous
  • anonymous
yes a teacher and if i asked her, she would probably think im cheating on the test...
lochana
  • lochana
There is no direct relationship between graphs and pythagorean theorem. You can draw graphs without pythagoras.
anonymous
  • anonymous
well yhe wuestion is confusing
lochana
  • lochana
Oh. Okay. Do you know how to draw a graph from a given equation. (eg: y = 2x )
anonymous
  • anonymous
no
lochana
  • lochana
okay. graph is a sketch of a equation. Like the one I gave before. You can represent it through a graph.
lochana
  • lochana
So a graph has 2 axis. We call them X and Y
lochana
  • lochana
|dw:1439217997479:dw|
lochana
  • lochana
now, In order to draw our graph . You need 2 things. They are values of x and y. Otherwise you can draw it.
lochana
  • lochana
think about: y = 2x
lochana
  • lochana
strangely we have these y and x parts in our equation. So we need to find some of x and y parts in numbers to draw our graph
lochana
  • lochana
I will explain you when you come back:)
anonymous
  • anonymous
ok
lochana
  • lochana
Hey. Are you following me so far?
anonymous
  • anonymous
yes, i know how to make a graph but how do you use it on a graph or when making a graph?
anonymous
  • anonymous
how do you use the Pythagorean therom on a graph...
lochana
  • lochana
Well, You can get a distance between 2 points using pythagorean theorem
lochana
  • lochana
Is that what you are asking?
anonymous
  • anonymous
yes
lochana
  • lochana
okay. You know that it is difficult to get a distance between two points when you are given coordinates of those points.
lochana
  • lochana
The easiest way to go for it, using this pythagorean thearem. let me give you an example
lochana
  • lochana
|dw:1439218976248:dw| okay. now you want to know the distance of pq
lochana
  • lochana
|dw:1439219099674:dw| if you know (a) and (b) , You will find distance pq by using pyth.. theorem
lochana
  • lochana
now you need to get these (a) and (b) somehow in terms of coordinates of p and q. I will show you how it is done.. look at the coordinate of those again. and consider only x values for now
lochana
  • lochana
|dw:1439219429465:dw| It is clear that these lines are 1 and 4 long. is it?
anonymous
  • anonymous
yes
lochana
  • lochana
|dw:1439219749996:dw| now go back to this one. can you guess (a) ?
lochana
  • lochana
you can find (a) from 1 and 4
anonymous
  • anonymous
k
lochana
  • lochana
|dw:1439219878597:dw|
lochana
  • lochana
(a) is 3
anonymous
  • anonymous
ok
lochana
  • lochana
if you think of (b) in that way , you will get (b). give it a try:)
lochana
  • lochana
|dw:1439220013389:dw|
lochana
  • lochana
did you understand it?
anonymous
  • anonymous
im lost
lochana
  • lochana
think about heights of p and q. and get the difference of p and q
lochana
  • lochana
I will draw you again
anonymous
  • anonymous
ok
lochana
  • lochana
|dw:1439220207256:dw| d and c are values of heights. look at coordinates and think about what makes their heights. And it must be y values
lochana
  • lochana
(d) is 5 (c) is 1
lochana
  • lochana
okay?
anonymous
  • anonymous
ok
lochana
  • lochana
okay, So if I ask you what is the difference of those points. what would it be?
lochana
  • lochana
difference of heights
lochana
  • lochana
you just subtract 1 from 5 right?
anonymous
  • anonymous
yeah
lochana
  • lochana
yes. So it is 4 5-1 =4
lochana
  • lochana
(b) is 4
anonymous
  • anonymous
yerp
lochana
  • lochana
so now we know (a) and (b)
lochana
  • lochana
(a) = 3 (b) = 4
anonymous
  • anonymous
k
lochana
  • lochana
|dw:1439220657934:dw| can you see it is a rectangular triangle and one can find pq
lochana
  • lochana
pythagorean thearem is |dw:1439220894648:dw|
anonymous
  • anonymous
that makes sence
lochana
  • lochana
yep. pq is square root( 3^2 + 4 ^2)
lochana
  • lochana
3^2 + 4 ^2 = 9 + 16
lochana
  • lochana
which is 25, and get the squre root of 25 is 5
lochana
  • lochana
pq is 5
anonymous
  • anonymous
what is the ^
lochana
  • lochana
3^2 = 3 to the power of 2
anonymous
  • anonymous
what is the "^" sighn
lochana
  • lochana
\[3^{2}\]
anonymous
  • anonymous
oh ok
lochana
  • lochana
bye
anonymous
  • anonymous
bye

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