What is the tangent of f(x)= 1/(x^2),\at x=2 ?

The tangent of f(x)= 1/(x^2),\at x=2 is y=-1/4 x+3/4

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tangent of f(x)= 1/(x^2),\at x=2

tangent of

f (x) = \frac{1}{x ^{2}}, at x = 2

y = - \frac{1}{4} x + \frac{3}{4}

Solution steps

Find the tangent point:

(2, \frac{1}{4})

Find the slope of

f (x) = \frac{1}{x ^{2}} : \frac{df ( x )}{d x} = - \frac{2}{x ^{3}}

EN : T i tl e G e n er a l Eq u a t i o n Sl o p e A t P o in t 2 Eq : m = - \frac{1}{4}

Find the line with slope m=

- \frac{1}{4}

and passing through

(2, \frac{1}{4}) : y = - \frac{1}{4} x + \frac{3}{4}

y = - \frac{1}{4} x + \frac{3}{4}

What is the tangent of f(x)= 1/(x^2),\at x=2 ?
The tangent of f(x)= 1/(x^2),\at x=2 is y=-1/4 x+3/4