If I asked told you it was my birthday and I wanted a cake, what would you do? You’ve got two choices: buy a bunch of ingredients and start baking, or go to a different aisle in the grocery store and just buy the cake. Baking the cake yourself is not only more time consuming (more…)
Let’s talk a bit about lines. Like everything else on the SAT, questions about lines will require some very basic knowledge of a few math rules, but you don’t need to know everything you ever learned about Cartesian coordinate planes. It’s important to be able to differentiate what’s important from what’s not. We’ll get into (more…)
NOTE: This post is about the OLD SAT (pre-2016). The current SAT DOES require you to know things like circle equations and trigonometry. Because the current SAT will also still ask questions like the ones discussed in this post, though, you may still find the information below useful. Circles can be difficult to deal (more…)
The parabola in the figure above has its minimum at x = 2. Which of the following could be an x-intercept of the parabola? (A) 2.5 (B) 3 (C) 3.5 (D) 4 (E) 4.5 Answer and explanation after the jump… The most important thing you can remember about parabolas is this: A PARABOLA IS (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…)