<p>For the sat math portion, do you need to know any more formulas than the basic ones provided to you already? For example, do you need to know the formulas for arithmetic and geometric series. I don't want to get surprised by something that I learned a while ago. Thanks!</p>
<p>How about this:</p>
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[quote]
y= f(x) + a shifts up or down (a positive or negative; +a or -a)
y= af(x) stretches or compresses vertically (a>1 or a<1)
y= f(x-a) shifts right or left (a postive or negative; +a or -a)
y= f(ax) stretches or compresses horizontally (a<1 or a>1)
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<p>This one sometimes helps a lot, particularly in question 10 page 806 blue book
[quote]
Total exterior angle of any shapes (triangle, parallelgram, square, rectangle...) always equal 360 degree
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<p>If all these things cannot cure you, this the best formulae, good luck, comrade:</p>
<p>
[quote]
SAT I Reasoning + Date Line = Reasoning + Mental derangement - Consciousness
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