**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. **

**Thank You**

** **