It is important to know the difference between Sketch A Graph & Draw A Graph.
Sketch ==>
- On foolscap paper
- Best Representation of the graph
- Less time as it reflects only the general shape of the graph.
Draw ==>
- On graph paper
- Accurate representation of the graph
- More time needed as it usually involves more points on the graph
- Curve rule/french curve is usually required.
Example:
Sketch
What I will do :
- Find x-intercept (i.e. set y = 0)
- Find y-intercept (i.e. set x = 0) y = 1
- Put the 2 points on the axes I have drawn on foolscap, join the 2 points, label the line.
Draw
- Set up a table of 3 values of x choosen randomly i.e x = -1 , 0, 1
- Find out values of y for each value of x by substituting into the equation of the line.
- Plot the points on a graph paper accurately.
- Join the 3 points, label the line.
Good in straight line? You might want to check out how you can draw Exponential Graph here even with NO Math knowledge.
Ai Ling Ong
Hi, I'm Ai Ling Ong. I enjoy coaching students who have challenges with understanding and scoring in 'O' Level A-Maths and E-Maths. I develop Math strategies, sometimes ridiculous ideas to help students in understanding abstract concepts the fast and memorable way. I write this blog to share with you the stuff I teach in my class, the common mistakes my students made, the 'way' to think, analyze... If you have found this blog post useful, please share it with your friends. I will really appreciate it! :)
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