This problem demonstrates a WeBWorK problem involving graphics.

The simplest functions are the linear (or affine) functions --- the functions whose graphs are a straight line. They are important because many functions (the so-called differentiable functions) "locally" look like straight lines. ("locally" means that if we zoom in and look at the function at very powerful magnification it will look like a straight line.)

Enter the letter of the graph of the function which corresponds to each statement.

1. The graph of the line is increasing
2. The graph of the line is decreasing
3. The graph of the line is constant
4. The graph of the line is not the graph of a function

A	B	C	D

This is another problem where you aren't told if some of your answers are right. (With matching questions and true false questions, this is the standard behavior -- otherwise it is too easy to guess your way to the answer without learning anything.)

If you are having a hard time seeing the picture clearly, click on the picture. It will expand to a larger picture on its own page so that you can inspect it more closely.

Some problems display a link to a web page where you can get additional information or a hint:Hint