What is the tangent of 7x-4sqrt(x) ?

The tangent of 7x-4sqrt(x) is y=(7-2/(sqrt(a_{0))})x-2sqrt(a_{0)}

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tangent of 7x-4sqrt(x)

tangent of

7 x - 4 x

y = (7 - \frac{2}{a _{0}}) x - 2 a_{0}

Solution steps

Compute the tangent line to the general point

x = a_{0}

Find the tangent point:

(a_{0}, 7 a_{0} - 4 a_{0})

Find the slope of

y = 7 x - 4 x : \frac{d y}{d x} = 7 - \frac{2}{x}

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 = 7 - \frac{2}{a _{0}}

Find the line with slope m=

7 - \frac{2}{a _{0}}

and passing through

(a_{0}, 7 a_{0} - 4 a_{0}) : y = (7 - \frac{2}{a _{0}}) x - 2 a_{0}

y = (7 - \frac{2}{a _{0}}) x - 2 a_{0}

What is the tangent of 7x-4sqrt(x) ?
The tangent of 7x-4sqrt(x) is y=(7-2/(sqrt(a_{0))})x-2sqrt(a_{0)}