Question

Find a unit vector parallel to the graph of f(x) at the given point.

Answer 1

ind the first derivative of the function and evaluate it at the point. This the tangent of the function at that point right? Describe the vector as an ordered pair (ie. (x,y) ) with the same angle, any length will do and normalize it. Or find the sine and cosine of the angle and insert in the proper place in the ordered pair.

Answer 2

Thanks