Algebra 1 4.1 Coordinates and Scatter Plots p. 203 - 208

1. Graphing Linear Equations and
Functions
4.1 Coordinates and Scatter Plots
p. 203-208

2. Coordinate Plane
 Y-axis

3. Coordinate Plane
 Y-axis
 X-axis

4. Coordinate Plane
 Y-axis
 X-axis
 Origin

5. Coordinate Plane
 Y-axis
 X-axis
 Origin
 Quadrants
II I
III IV

6. Plotting Points
An ordered pair is like the address of a
point on the coordinate plane.

7. Plotting Points
An ordered pair is like the address of a
point on the coordinate plane.
The point (3, 2) lives at 3 on the x-axis
and 2 on the y-axis.

8. Plotting Points
 Go to 3 on the x-
axis.

9. Plotting Points
 Go to 3 on the x-
axis.
 Go to 2 on the y-
axis.

10. Plotting Points
 Go to 3 on the x-
axis.
 Go to 2 on the y-
axis.
 Find where they
meet.
(3, 2)

11. Scatter Plots
Scatter plots are used to graph pairs of
data.

12. Scatter Plots
Scatter plots are used to graph pairs of
data.
 I.e., height v. weight, year v. number of
students at BA.

13. Scatter Plots
Excel