Quadratic Function (Parabola)

Two Linear Functions

2.5*sin(x^{2})

Major Steps of Graphing
This lesson has two major parts, easy and
advanced. Whenever you need to draw a graph, you
always need to follow the following guidelines.
How to plot a nice graph with sweaty shaky hands
I have to make a terrible confession. My hands are sweaty and they
shake a lot. I am generally a messy person and my wife complains that
my desk is a nightmare. Maybe she is right. But my experiences taught
me how to plot nice graphs.
 Take your time. I had to learn it the hard way,
whenever I took a shortcut I had to spend a lot of time fixing my
mistakes.
 Use a ruler.
 Use a pencil, not a pen, it is easier to erase
 Plot with small strokes of your pencil. Do not
try to plot the entire graph in one move of your hand.

This hilarious picture taken from
Purplemath
(link opens in a separate window)

Determining the nature of the function you are graphing
Jump to:
Linear (straight lines) ,
Quadratic (parabolas) ,
Absolute value
Remember that the high school curriculum is designed so that even
relatively stupid students can get decent grades, provided that they
spend time doing homework and read textbooks. So in most schools, you
will not be asked to plot very fancy graphs.
This chapter helps you do 90% of your graphing homework by jumping to
the appropriate type of graphs. For those of you who study advanced
math, or are curious, more explanations are provided in the advanced
sections of this lesson.
You can expect graphs of the following type:
Advanced Graphing
Next: >>
Click Here for an advanced graphing lesson