Start by writing out the definition of the derivative, Multiply by to clear the fraction in the numerator, Combine like-terms in the numerator, Take the limit as goes to , We are looking for an equation of the line through the point with slope . The point-slope formula tells us that the line has equation given by or .

### Wyndham procurement

I looked for various answers and couldn't find anything helpful.What I know is the derivative of a curve at a point is the slope of tangent line drawn to the point.Nowwhat does second derivative mean slope of the slope of line?I know it in terms of velocity,acceleration etc. but it is hard for me to get it in math.