1. Agenda Tuesday, Nov.
30
Do Now
homework 13
p. 301 # 4 - 14, 16, 18 - 24, 40 - 42
Homework Check
6-3 Standard Form Examples 1 - 3
Quiz on 6.1 - 6.3 Thursday

2. HW CHECK

3. Do Now
With your partner, please complete both sides of the handout. These will
be most of your notes for this section.

6. Standard Form of a Linear Equation
Ax + By = C
A,B, & C are all real numbers and A and B are not both zero
3x + 4y = 8
A = 3, B = 4 and C = 8
Useful for graphing.
Find the x and y intercepts.
What is the value of y at the x-intercept?
y = 0
What is the value of x at the y-intercept ?
x = 0

7. 8/3
x y
0
0
3x + 4y = 8
Solve for the x and y intercepts.
3x + 4y = 8
3x + 4(0) = 8
3x = 8
x = 8/3
3x + 4y = 8
3(0) + 4y = 8
y = 2
Substitute 0 for the x to find y intercept.
2
Substitue 0 for y to find the x intercept.

8. x y
0
0
2
8/3
(0,2) = y-intercept
(8/3, 0) - x-intercept
plot both points & draw your line

9. x y
0
0
You try:
Find the x and y intercepts and graph the equation
4x - 9y = 12

13. WHITEBOARD PRACTICE
What are the x and y-intercepts?
x + 2y = 18
(18, 0) (0, 9)
-5x + y = 30 (-6,
0) (0, 30)
-2x - 3y = -12 (6, 0) (0, 4)
What is the equation of each line in Standard Form?
x = 3 y = 1 x = 0