Calling all good math people. Rocket Review vs. Grubers 2009 SAT study guide

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They only test the most basic concepts and never in a way that school does. One of my personal favorite questions was the last on a section. It asked: If 4506^x = y, what is the greatest possible value for y-x? Some kids with Cs in precalc can answer this without looking up from Assassin’s Creed because they look for the easiest possible numbers that will work. ( If x is 1, then y is 4506 and y-x=4505 ) I’ve had other kids with 5s on AP calc bring out complicated techniques only to stumble.

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<p>That question is the last one of one section. This question requires paying attention to what is asked and using reasoning. Using a small value for x is indeed the key when the question asks for the greatest value of a difference between two numbers.</p>