1. -3 -3x -3x -3 -3 -3 Objective- To identify the slope and y-intercept
of a line in standard form.
Standard Form
Slope-Intercept Form
y = mx + b
Ax + By = C -3
3x + 2y = 8
y = x + 4
-3x x 2
2y = -3x + 8 -3
m = 2 -3 8
y = x +
b = 4 2 2 -3
y = x + 4 2
To change Standard Form to Slope-Intercept Form
just solve the equation for y.

2. -4x + 3y = 6 Graph the following equation. +4x +4x y +3 3y = 4x + 6 +4 4 6
y = x + 3 3 4
y = x + 2 3 x 4
m = 3
b = 2

3. -2x -2x -2 -1 -1 -1 Graph the following equation. 2x + 6y = 3 y
6y = -2x + 3 -2 3
y = x + 6 6 -1 1
y = x + 3 2 -1 x -1 +3
m = 3 1
b = 2

4. Graph the following equation.
y = x y
y = 1x + 0
m = 1
b = 0 +1 +1 x

5. Write a linear equation to describe this situation and graph.
Ralph has $300 and is saving $25 a week.
Let x = # of weeks
Let y = savings in dollars
Start value
change
y = x
500
400
300
200
100
y = mx + b
Slope
Y-intercept
Savings
m = $25 / week
b = 300
Weeks

6. Pam received $100 and spends $4 each week.
1) Write an equation for the money, y,
she has after x weeks.
y = x
2) What are the slope and y-intercept?
m = -4
b = 100