,
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,
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Find the equation of the tangent line of the function
at the point .
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Let .
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A)If , find .
B) Find .
You need to know that .
So
So
So the slope of the tangent line to the function f(x) at x = 1 is -2.
What point is the tangent line passing through? Well, it passes through the point on the function at x = 1:
So we want a line with a slope of -2 that passes through the point (1, 2).
I leave the rest to you.
-Dan