This week in precalc 11 we started graphing and systems of equations I understand most of it so far although I will be missing the majority of the chapter because I will be away. We learned how this works with one and two variables this week. When you have one variable you can work on just the x axis but when you have two you can actually graph something. One thing I learned was figuring out if a point was a solution to an inequality. so if we have 2x – y<25 you have random coordinates like (6, -2)

then we’ll have something to solve and if the satement is true then it works. 2(6) – (-2) <25. 12 + 2 < 25. 14 < 25. So the statement is true becuse 14 is less than 25.