SOLUTION: Write an equation of a tangent to the curve at a given point: y=2x-1/x at P(0.5,-1)

Question 182408: Write an equation of a tangent to the curve at a given point:
y=2x-1/x at P(0.5,-1)
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
The slope of the tangent line is the value of the derivative of the function at that point.
First, find the derivative of the function.

At x=0.5,

Now you have the slope of the line, use the point-slope form of the line,

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