1. GRAPHS – MODE OF OPERATION
HOW TO PROCEED TO DO A GRAPH?
ASK THE FOLLOWING QUESTIONS.
HAVE I MARKED X axis and Y axis?
HAVE I LABELED THEM WITH CORRECT UNITS?

2. WHAT IS RANGE? CURRENT IN AMPERES 0.2 0.45 0.87 0.95 1.25
VOLTAGE IN VOLTS
0.24
0.54
1.05
1.12
1.50
LOOK AT THE CURRENT VALUES: THE RANGE FOR CURRENT IS MAXIMUM 1.25
LOOK AT THE VOLTAGE: THE RANGE FOR VOLTAGE IS 1.50
IN OTHER WORDS, THE MAXIMUM VALUE WHICH HAS TO BE ACCOMODATED IN THE GRAPH

3. SCALE
IF YOU SEE THE X AXIS , THE VALUE OF 1.25 HAS TO BE DIVIDED IN THE GRAPH. SO YOU CAN TAKE THE SCALE AS 2 CM = 0.2 AMPERES
IF YOU SEE THE Y AXIS , THE VALUE OF 1.50 HAS TO BE DIVIDED IN THE GRAPH. SO YOU CAN TAKE THE SCALE AS 2 CM = 0.2 VOLTS

4. 1.6
1.4 V O L T A G E I N S
1.2
1.0
0.8
0.6
0.4
0.2
CURRENT IN AMPERES

5. HOW TO FIND SLOPE?
1.6
SLOPE = DIFFERENCE IN Y AXIS = – = 0.6/0.51 = 1.1 VOLTS
DIFFERENCE IN X AXIS – AMPERES
1.4 V O L T A G E I N S
1.2
1.0
0.8
0.6
0.4
0.2
CURRENT IN AMPERES

6. WHAT IS BEST FIT?
A line of best fit (or "trend" line) is a straight line that best represents the data on a scatter plot. This line may pass through some of the points, none of the points, or all of the points.

8. I AM SURE THAT IF I GO THROUGH THIS SLOWLY, I CAN UNDERSTAND HOW TO DRAW SLOPE AND BEST FIT !!!!!!