SOLUTION: I do not know how to graph the parabola y= x^2

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Question 219630: I do not know how to graph the parabola y= x^2
Found 2 solutions by stanbon, jim_thompson5910:
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
I do not know how to graph the parabola y= x^2
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Plot a few points and draw a smooth curve thru them.
If x = -2, y = 4 giving you (-2,4)
If x = -1, y = 1 giving you (-1,1)
If x = 0, y = 0 giving you (0,0)
If x = 1, y = 1 giving you (1,1)
If x = 2, y = 4 giving you (2,4)
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Cheers,
Stan H.
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!

Table of Contents:

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In order to graph , we need to plot a few points. To find these points, simply plug in values of 'x' to find corresponding values of 'y'. They will form the points in the form (x,y).


Let's find the y value when


Start with the given equation.


Plug in .


Square -3 to get 9.


So when , . So we have the point (-3,9).


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Let's find the y value when


Start with the given equation.


Plug in .


Square -2 to get 4.


So when , . So we have the point (-2,4).


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Let's find the y value when


Start with the given equation.


Plug in .


Square -1 to get 1.


So when , . So we have the point (-1,1).


----------------------------


Let's find the y value when


Start with the given equation.


Plug in .


Square 0 to get 0.


So when , . So we have the point (0,0).


----------------------------


Let's find the y value when


Start with the given equation.


Plug in .


Square 1 to get 1.


So when , . So we have the point (1,1).


----------------------------


Let's find the y value when


Start with the given equation.


Plug in .


Square 2 to get 4.


So when , . So we have the point (2,4).


----------------------------


Let's find the y value when


Start with the given equation.


Plug in .


Square 3 to get 9.


So when , . So we have the point (3,9).


----------------------------


Now let's make a table of the values we just found.



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Table of Values:





xy
-39


-24


-11


00


11


24


39

Now let's plot the points:




Now draw a curve through all of the points to graph :



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Graph of

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