Elementary Algebra Quiz 4
1. A rectangular coordinate system consists of two perpendicular number lines. One number line is drawn horizontally and the other is drawn vertically.
2. Each point in a coordinate plane can be identified by a pair of real numbers x and y written in the form (x, y).
The first number is called the x-coordinate and represents a number on the horizontal number line.
The second number is called the y-coordinate and represents a number on the vertical number line.
3. The process of locating a point in the coordinate plane is called graphing or plotting the point.
5. Is 5 a solution of 2b + 3 = 15 ?
NO. Because 2(5) + 3 = 13 ¹ 15
Please come to the front of the room to pick up your quiz.