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Here is the question:
I have posted a link there to this topic so the OP may see my work.Calculus tangent line?
If the line 3x-4y=0 is tangent in the first quadrant to the curve y=x^3+k then k is
(a)1/2
(b)1/4
(c)0
(d)-1/8
(e)-1/2
Could you please show work because I am so lost