SOLUTION: graph of the fuction x^2/(1-x)

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Question 1082080: graph of the fuction x^2/(1-x)
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Table of values
xy
-54.16667
-43.2
-32.25
-21.33333
-10.5
00
1UND
2-4
3-4.5
4-5.33333
5-6.25


Each y value is found by plugging in the corresponding x value. For example, if we plug in x = 3, then y+=+%28x%5E2%29%2F%281-x%29+=+%283%5E2%29%2F%281-3%29+=+%289%29%2F%28-2%29+=+-4.5 giving the pairing (x,y) = (3,-4.5). The rest of the y values are generated in a similar way.

Warning: x = 1 is not allowed since the denominator would turn into 1-x = 1-1 = 0 leading to a division by zero error. The "UND" in the table stands for "Undefined"

Each (x,y) value is then plotted on the same grid and you draw a curve through all the points. In this case, there's two separate pieces that don't join.

From the table shown above, we have these ordered pairs

A = (-5, 4.16667)
B = (-4, 3.2)
C = (-3, 2.25)
D = (-2, 1.33333)
E = (-1, 0.5)
F = (0, 0)
G = (2, -4)
H = (3, -4.5)
I = (4, -5.33333)
J = (5, -6.25)

Take note of the labeling of each point and how it corresponds to the image below

Image generated by GeoGebra (free graphing software).

I recommend using graphing software or a graphing calculator so you can see the basic shape of this curve.