1.5 Solving Linear Equations
Solving Equations
Remember when solving an equation, we must isolate the variable x by adding, subtracting,
multiplying, and dividing. The operations must be done on both sides of the equation.
Example #1: Solve:
3x 9 6
To get
1.2 FUNCTIONS AND GRAPHS
Function : a correspondence or relation where each domain (input or x) is paired with
exactly one, (one and only one) range (output or y).
The following example is in a mapping form. A mapping, rather than the ordered pair
format,
SYMMETRY AND TRANSFORMATIONS
Basic Graphs in College Algebra
The basic functions commonly used in College Algebra are shown below. We will study how to
move these basic functions around like shifting them to the left, right, up, down, reflections, and
str
4.2 Graphing Polynomial Functions
Remember that the degree is the highest power of a polynomial.
1. The degree, n, tells at most how many real zeros the polynomial can have.
Real zeros are also called x-intercepts.
Turning points occur when a function cha