Graph C has a function

Since the line L intersects the graph at the point, A (2, -5)
To find the slope of the line we will differentiate the f(x) and substitute x by 2

The slope of the line is 8, substitute it in the form of the linear equation

To find b substitute x by 2 and y by -5

Subtract 16 from both sides to find b

Then the equation of the line is
