1. Algebra 2
Ch.2 Notes Page 7
P Linear Equations Part 2

2. Slope-Intercept Form y = mx + b Standard Form Ax + By = C
Types of Equations
Slope-Intercept Form y = mx + b
Standard Form Ax + By = C
Point-Slope Form y - y1 = m (x - x1)
Horizontal Lines & Vertical Lines
y = Number x = Number
Parallel and Perpendicular Lines
Slopes and Reciprocals

3. Slope Intercept Form
y = mx + b
m = 3 and (2, 4)

4. Standard Form
Ax + By = C
4x + 8y = 24
Find X and Y Intercepts

5. Point Slope Form y - y1 = m(x - x1) m = 2 and (3, 4)

6. Slope-intercept: y = mx + b
3 equations for a line:
Slope-intercept: y = mx + b
Point-slope: y - y1 = m(x - x1)
Standard form: ax + by = c
slope
y-intercept
all x, y STAY as they ARE!
(x,y) point on line
numbers

7. Equation: x = some number.
Vertical Lines:
Up & down.
Have undefined slope
Equation: x = some number.
Horizontal Lines:
Left & right
Have zero slope
Equation: y = some number.

8. y = 2x + 5 Parallel and through (4,6) y = 2/3x + 3 Perpendicular and
Parallel Lines:
never touch each other, so they must have
THE SAME SLOPE!!
y = 2x + 5
Parallel and
through (4,6)
Perpendicular Lines:
hit each other at a right angle.
one slope has to positive, one has to be negative.
They must be negative reciprocals
y = 2/3x + 3
Perpendicular and
through (4,6)

9. HW #5
2-2 P68 #20,24,26,30,32,36,43,45,48,51,57
Please put your name and class period at the top of the homework. Also include the homework number.