### Home > CALC > Chapter 4 > Lesson 4.1.3 > Problem 4-33

4-33.

Given the graph to the right of *f*(*x*) = 2*x*+ 1, find: Homework Help ✎What is the difference between the expressions in parts (a) and (b)?

It's a trapezoid!

You could sketch another graph where the horizontal axis is called *t*. Or you could let *x* = *t* and use the graph above.

None. The finite areas are the same.