So the first part, let's figure out its slope. And the slope of the tangent line is going to be the same slope as the slope of our function at that point. Or another way to think about it, it is going to be f prime of 1 half, or the derivative evaluated at 1 half. The derivative gives us the slope of that line at any point. So what is f prime of x? f prime of x is just the derivative of this. So 3 times 8 is 24 times x squared.