What is the tangent of x^3,\at x=-1 ?

The tangent of x^3,\at x=-1 is y=3x+2

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tangent of x^3,\at x=-1

tangent of

x^{3}, at x = - 1

y = 3 x + 2

Solution steps

Find the tangent point:

(- 1, - 1)

Find the slope of

y = x^{3} : \frac{d y}{d x} = 3 x^{2}

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 = 3

Find the line with slope m=

3

and passing through

(- 1, - 1) : y = 3 x + 2

y = 3 x + 2