SOLUTION: How can i estimate the root of the equation using a graph, (y= x^-2x-8)

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Question 23083: How can i estimate the root of the equation using a graph, (y= x^-2x-8)
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
Finding roots by use of a graph is getting to be one of best methods available, especially with graphing calculators. Just draw the graph, and the roots are the values of x, where the graph crosses the x-axis.
graph%28300%2C+300%2C+-10%2C10%2C-10%2C10%2C+x%5E2+-+2x+-8%29+
In this case, notice that the graph crosses the x-axis at x= 4 and x= -2, so the roots are x= 4 and x= -2.

R^2 at SCC