1. 3-1 Quick Graphs Using Intercepts
Goal:
Use x and y intercepts to draw a graph.
Eligible Content:
A / A

2. Steps: Find the x and y intercepts (just like yesterday).
Plot the two intercepts on a graph.
Draw a line through the two points.

3. 5x + 2y = 20 x-intercept 5x + 2•0 = 20 5x = 20 x = 4 (4,0) y-intercept
(0,10)

4. Examples Graph each equation using the x and y intercepts 6x – 2y = 12
y = 3x – 9
y = -2x + 8

5. Is this the correct graph for 2x + 5y = 10?
yes no

6. Practice on Whiteboards!
Graph each equation using the intercepts
4x + 3y = 24
-2x + 7y = -14
5x – 8y = 32
y = 4x – 8
y = -3x + 3

7. Homework
Pages #19-28