What is the slope of the tangent line when x is 1 and y is equal to 4? Well, we just have to substitute x is equal to 1 and y equals 4 into this expression. So it's going to be equal to 3 times 4 minus 1 squared minus 2 times 1, all of that over 3 times 4 minus 1 squared, which is equal to 4 minus 1 is 3. You square it, you get 9. 9 times 3 is 27. You get 27 minus 2 in the numerator, which is going to be equal to 25. And then in the denominator, you get 3 times 9, which is 27.