You have now completed Book One. At this point you should be able to do the following:

- Define the terms
*constant*and*variable*. - Identify whether an item is a constant or a variable.
- Identify whether an item
is a
*dependent*or*independent*variable. - Identify the
*x*and*y*axes. - Identify the origin on a graph.
- Identify
*x*and*y*coordinates of a point. - Plot points in a graph.
- Draw a graph from a given equation.
- Determine whether a given point lies on the graph of a given equation.
- Define slope.
- Calculate the slope of a straight line from its graph.
- Identify if a slope is positive, negative, zero, or infinite.
- Identify the slope and
*y*-intercept from the equation of a line. - Identify the
*y*-intercept from the graph of a line. - Match a graph with its equation.

If you still have questions concerning any of these topics, go back and review them now.

If not, complete the review test that follows. Try to do the test without referring back to the material, but after you have finished the review test and checked your answers, you are strongly encouraged to reread the units for the test questions you have missed.

Once you have completed the review test and you are confident
that you understand the materials in this book, go on to the next
tutorial, **Linear and Nonlinear
Relationships***.*

[table of contents] | [review test] |