Tools -->Graph Type 1

The Very first Chapter of Physics handbook.
Importance : Strengthens you on part of maths used in Physics.
Contents :

1. Graphs
2. Mathematical Series
3. Calculus

Start with types of Graphs :-

Example 1  Graph .

Solution

This is a line in the slope intercept form

                                                    

In this case the line has a y intercept of (0,b) and a slope of m.  Recall that slope can be thought of as

                                                                                                                                                                                     

Note that if the slope is negative we tend to think of the rise as a fall. 

The slope allows us to get a second point on the line.  Once we have any point on the line and the slope we move right by run and up/down by rise depending on the sign.  This will be a second point on the line. 

In this case we know (0,3) is a point on the line and the slope is .  So starting at (0,3) we’ll move 5 to the right (i.e.  ) and down 2 (i.e.  ) to get (5,1) as a second point on the line.  Once we’ve got two points on a line all we need to do is plot the two points and connect them with a line.

Here’s the sketch for this line.