So let's do that. So as we know, slope is change in y over change in x. So if we change our, to go from two comma three to seven comma six, our change in x, change in x, we go from x equals two to x equals seven, so our change in x is equal to five. And our change in y, our change in y, we go from y equals three to y equals six, so our change in y is equal to three. So our change in y over change in x is going to be three over five, which is the slope of this line, which is the derivative of the function at two, because this is the tangent line at x equals two. Let's do another one of these. So, for a function g, we are given that g of negative one equals three, and g prime of negative one is equal to negative two.