Explanation for Question 23 From the Math (Calc) Section on the Official Sat Practice Test 10
Now question number 23 gives us this table right here and says it some 2 values of X and the corresponding values of Y are shown. 3 So we see the X as our top row up through here. 4 And why is our bottom row down through here? 5 So some of the points, for example, here, it would be a comma, 6 zero three, 7 a common negative, a here and five, 8 a common negative two, a those would be our data points. 9 And then it tells us that a is a constant. You'll see the sat 10 uses this word a lot. A constant can be any type of number. 11 It can be a counting number. It could be a decimal. 12 Um, PI is also a constant, 13 right? We know that PI has, um, or goes on forever, 14 right? So it can also be a concept that goes on forever. 15 But the most important thing is that it does not change. 16 It's always going to be the same number. So if a were to, 17 for example, a would always be two, 18 that's not really important for the math necessarily, 19 but it might be something that you get caught up on. 20 If you don't understand what it means. And then it goes on to say, 21 if a linear relationship, some linear relationship, 22 they say that just so that we know we can use all of our 23 knowledge about lines to solve this equation, 24 which of the following equations represents the relationship. 25 Right? So we see here that these are written in what we call standard 26 form, right? 27 It's generally a X plus V Y is equal to C. 28 So your X's and your wise are on the same side of the equati...