What is the equation of that the tangent line to the curve y = x^1/3 at the point (8, 2)?

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1 Answer
May 17, 2018

#y=1/12x+4/3#

Explanation:

#"to obtain the equation of the tangent we require slope "#
#"and a point on it"#

#"we have "(x_1,y_1)=(8,2)#

#"the slope m is "dy/dx" at x = 8"#

#y=x^(1/3)#

#rArrdy/dx=1/3x^(-2/3)=1/(3x^(2/3))#

#x=8tody/dx=1/(3xx8^(2/3))=1/12#

#rArry-2=1/12(x-8)#

#rArry-2=1/12x-2/3#

#rArry=1/12x+4/3larrcolor(red)"equation of tangent"#