SOLUTION: sketch: y=(x^2-1)(x-2)

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Question 638262: sketch:
y=(x^2-1)(x-2)
Found 2 solutions by stanbon, MathLover1:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
sketch:
y=(x^2-1)(x-2)
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graph%28400%2C400%2C-20%2C20%2C-25%2C25%2C%28x%5E2-1%29%28x-2%29%29
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Cheers,
Stan H.

Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
y=%28x%5E2-1%29%28x-2%29...it's third degree function, has three roots
if you factor it completely

y=%28x-1%29%28x%2B1%29%28x-2%29 roots are:
if y=0
%28x-1%29=0 ....->...x=1
%28x%2B1%29=0 ....->...x=-1
%28x-2%29=0 ....->...x=2

x-intercepts: points (1,o), (-1,o), (2,o)
if x=0, then y=%280%5E2-1%29%280-2%29=-1%2A-2=2
y-intercepts: (0,2)
+graph%28+600%2C+600%2C+-6%2C+5%2C+-10%2C+10%2C+%28x%5E2-1%29%28x-2%29%29+