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tangent f(x)=x^2-49x-456,\at x=2

解答

切线

f (x) = x^{2} - 49 x - 456, at x = 2

解答

y = - 45 x - 460

求解步骤

找到切点:

(2, - 550)

计算

f (x) = x^{2} - 49 x - 456

的斜率:

\frac{df ( x )}{d x} = 2 x - 49

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 = - 45

找到斜率 m=

- 45

且穿过

(2, - 550)

的直线:

y = - 45 x - 460

y = - 45 x - 460

作图

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