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tangent f(x)=3x^4+2x-1,(2,51)

解答

切线

f (x) = 3 x^{4} + 2 x - 1, (2, 51)

解答

y = 98 x - 145

求解步骤

计算

f (x) = 3 x^{4} + 2 x - 1

的斜率:

\frac{df ( x )}{d x} = 12 x^{3} + 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 = 98

找到斜率 m=

98

且穿过

(2, 51)

的直线:

y = 98 x - 145

y = 98 x - 145

作图

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