00:01
So using the results of part a, we don't have part a in the image, but we want to guess the value of the slope of the tangent line to the curve 9 -9 -3.
00:13
And then using the slope from part b, we want to find the equation of the tangent line.
00:18
So let's say we have a graph or we have a function, and we find its derivative.
00:29
So we find the derivative of this function to be this line.
00:35
Right here, so if i go through the origin, so we have that.
00:43
Well, with that, if we want to know the slope of the tangent line to the curve at 9 -9 -3, and this is, say, f of x, and this is f -prime of x, well, we would know the slope of the tangent line to the curve by looking at f -prime of 9...