# Study Guide - Chapter 3

## Math 116

- Find the equation of the perpendicular bisector of the line segment between two points. See
the take home problem on finding the equation of the circle passing through the three points.
- Find the x-intercept(s), y-intercept(s) and test for symmetry about the y-axis, x-axis, and
origin. An example has been worked for you. Three parts. Look at problems 39 - 58 in
section 3.2*.
- Find the domain of a function. Three parts. Look at problems 29 - 38 in section 3.4*.
- Find the difference quotient for the given function. Look at problems 47 - 52 in section 3.4,
but concentrate on difference quotients like 49 and 50. The one on the test will be of the form
[ f(x+h) - f(x) ] / h, but the function is not one of the ones given.
- Give the translation, and the domain and range of the translated function. Six parts. Look in
your notes at the many quizzes we had on this material.
- Evaluate the indicated function for two given functions. Three parts. Look at problems 9 - 20
in section 3.6*.
- Find the composition of two functions. Two parts. Look at problems 25 - 32 in section 3.6*.
- Determine if a function is one-to-one. If the function is one-to-one, then find the inverse of the
function. Two parts. Look at problems 37 - 52 in section 3.7*.
- Determine if the function is odd, even, or neither. Two parts. Look at problems 27 - 40 in
section 3.5*.
- Sketch some graphs. Four parts. Look at the graphs of the functions on page 208, realize that
some translation has been done to each of them. Also, know how to sketch a circle.
- Determine what happens in a variation problem when a certain change is made in one of the
variables. Look at problems 49 - 51 in section 3.8*.

* - problem is directly from text.