To introduce functions it's very useful to remember some concepts:
To graph functions you can use this link:
But, it´s possible to work with a graphic calculator. There are some of them on line:
19 / 5 / 12 EXAM PREPARATION
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Check older posts related to inequalities and geometry.
Practise exercises
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Ask your questions
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QUESTION OF THE WEEK
Do you know the angle between two vectors if drawing is not allowed?
a = (1,1)
b = (-2,2)
2 / 5 / 12 MEAN PROPORTIONAL IN A RIGHT TRIANGLE
TO LEARN HOW TO USE THE MEAN PROPORTIONAL IN A RIGHT TRIANGLE:
TO PRACTISE USING IT:
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