What is the tangent of x^2-7x ?

The tangent of x^2-7x is y=(2a_{0}-7)x-a_{0}^2

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tangent of x^2-7x

tangent of

x^{2} - 7 x

y = (2 a_{0} - 7) x - a_{0}^{2}

Solution steps

Compute the tangent line to the general point

x = a_{0}

Find the tangent point:

(a_{0}, a_{0}^{2} - 7 a_{0})

Find the slope of

y = x^{2} - 7 x : \frac{d y}{d x} = 2 x - 7

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 = 2 a_{0} - 7

Find the line with slope m=

2 a_{0} - 7

and passing through

(a_{0}, a_{0}^{2} - 7 a_{0}) : y = (2 a_{0} - 7) x - a_{0}^{2}

y = (2 a_{0} - 7) x - a_{0}^{2}

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