
Expert Mathmatician
Step Pattern




Mapping Notation
Mapping Notation is another way of figuring out the points to sketch your graph. What you need for this is:
-
Your equatuation in Vertex Form
-
The formula (x+h, ay+k)
-
and a table showing you the points of y=x^2
As you already know, Vertex Form is y=a(x-h)^2+k. To do Mapping Notation, what you need to do is sub the values of your equation, into the formula (x+h, ay+k). This means that if you had an equation like (y=2(x-3)^2+5) your formula would look like this (x+3, 2y+5). this is because (a=2, h=3 and k=5). Now all you have to do is take the x values from the table that shows you the points of y=x^2 and sub them inot the mapping notation formula. (for example i would take -3 and sub it into the x part of the formula [-3+3] and the 9 into the y part of the formula [2*9+5]. This gives you your x and y coordinates (make sure that while you are subbing the points, you are making another table on the sides which clearly show what the x and y values are). you will continue to do this until you get the next 5-7 coordinates.
