SOLUTION: help to plot the roots of a Parabola using f(x)=3x^-3 show how to get to Roots -1 , 1

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Question 916366: help to plot the roots of a Parabola using
f(x)=3x^-3
show how to get to
Roots -1 , 1
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

f%28x%29=3x%5E-3......this is not a Parabola, it's hyperbola
f%28x%29=3%281%2Fx%5E3%29..........

Roots -1 , 1 ...these are not roots
if you need to find and plot points (-1,f(x)) and (1,f(x)), here is how to do it:
f%28-1%29=3%281%2F%28-1%29%5E3%29
f%28-1%29=3%281%2F-1%29
f%28-1%29=-3

f%281%29=3%281%2F%281%29%5E3%29
f%281%29=3%281%2F1%29
f%281%29=3
points are: (-1,-3) and (1,3)