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# Maths question: Tangents and normals to a curve? watch

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1. The curve y=x^3-8 cuts the x-axis at the point C.

A. Find the coordinates of C
B. Find the equation of the normal to the curve at the point C

I understand part B but I don't know what to do on part A. Please help because without part A, I can't do part B. Thank you
2. At the x-axis, what is y?
3. I don't know but i posted every bit of the question here.
I don't know but i posted every bit of the question here.
At the x-axis y=?

I am sure that you do know

It would not be part of the question
5. For Point C to cut the x axis, y=0

Rearrange to find x
6. (Original post by Catiexx)
For Point C to cut the x axis, y=0

Rearrange to find x
Thank you!! I feel so dumb now, haha I know what to do

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Updated: October 30, 2011
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