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Consider the following function.
f(x) = 2/x^2; x = −1
(a) Use any method to estimate the slope of the tangent to the graph of the given function at the point with the given x-coordinate.
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Take the derivative:
2/x^2 = 2x^-2
Derivative is a power rule:
Plug in -1
The slope of the tangent is 4
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