- #1
A_Munk3y
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Homework Statement
Find an equation of the tangent line to the graph of the function f defined by the following equation at the indicated point.
(x - y - 1)3 = x; (1, -1)
The Attempt at a Solution
x3-y3=1
3y2(dy/dx)-3x2=0
3y2(dy/dx)=3x22
(dy/dx)=3y2/3x2
(dy/dx)=x2/y2
slope = (dy/dx) = 1
y-(-1)= 1(x-1)
y=x-2
thats wrong -.-
i tried making it dy/dx = x/y and still wrong.
where am i messing up? I'm pretty sure it has to do with the x at the end but i have no idea what to do with it!
We just learned derivatives so I'm still messing up with them.