Graphing With Coordinates Section 1.4

A plane that is divided into 4 regions by a vertical and horizontal number line is called a _______________________. coordinate plane

The point at which the x-axis and y-axis intersect is called the _______________. The four regions of a coordinate plane are called _________________. The vertical line is called the ________________. The horizontal line is called the _____________. y-axis x-axis quadrants origin

ordered pair The order in which you name a point is important which is why the coordinates of the point are called an ______________. ordered pair

EXAMPLE 1: Determine the quadrant and coordinates for points A, B, C, D, E, F, G, H, and I on the graph.

A (4, 2) QI B (0, 2) y-axis C (-4, 1) QII D (-3, 0) x-axis E (-3, -3) QIII F (2, -3) QIV G (0, -4) y-axis H (0, 0) origin I (2, 0) x-axis

Example 2: Graph each of the following points on the coordinate plane.

Sometimes when we talk about a set of ordered pairs we make a table to show the values of x and y. The table can be written in ______________ or ___________________ form. vertical horizontal X Y X Y Horizontal table Vertical table

Let’s do Example 3 & 4 together…