Very sorry for the disappearing and reappearing blog the past 24 hours or so. Blogger has had some difficulties, but I’ve used it for the better part of a decade without incident, so this one won’t send me running for the hills. I’m assured that the super long post I wrote and posted yesterday about (more…)
I found this image here. You can be sure that you’re going to encounter exponents on the SAT. Hopefully, once you’ve been through this post, you’ll look forward to the opportunity to spank these questions like they deserve. Look at them, mocking you. They’re totally asking for it. Show no mercy. The Basic Exponent Rules (more…)
For all positive integers p and q, let the function p♮q be defined as p♮q = 2p-q. If g♮12 = g, then g = (A) 2 (B) 4 (C) 8 (D) 16 (E) 76 Answer below. The cardinal rule of function questions is this: FOLLOW THE DIRECTIONS EXACTLY. If p♮q = 2p-q, then g♮12 = 2g-12. We know (more…)