39­42 standard form.notebook
February 27, 2013
LT#7: I can write and graph equations in Standard Form.
What is Standard form?
Ax + By = C
3x ­ 6y = 4
Write equivalent equations.
How to write
an equation in Standard form.
p.39
x ­ y = 3
1.
2.
3.
4.
5. Write an equation in Standard Form of the line.
slope: _____
point: _____
Write an equation in Standard Form of the line that passes through the 2 points.
point 1: (3, ­1)
point 2: (2, ­3)
39­42 standard form.notebook
February 27, 2013
A dog kennel charges $20 per night and $5 per doggie treat. b) Graph the a) Write an equation that equation.
models the possible combinations of nights and treats you can buy for $100.
x y
p.40
y
x = ______________
y = ______________
Ax + By = C
x
Summary:
CW (1, 3, 6, 11, 13)
P
p.40­42
Write two equations in Standard Form that are equivalent to the given equation.
1)
2)
Write and equation in Standard Form of the line that passes through the given point and has the given slope m.
3)
4)
5)
Check:
Check:
Check:
39­42 standard form.notebook
February 27, 2013
Write an equation in Standard Form of the line that passes through the given points.
6)
(2, ­1) (4, 5)
7)
Check:
p.41
(­8, 3) (­9, 5)
Check:
8) A cat sitter chargers $10 per night and $2 per cat treat. a) Write an equation that models the possible combinations of nights and treats you can buy for $50.
b) Graph the equation.
y
x y
x = ______________
y = ______________
Ax + By = C
x
39­42 standard form.notebook
February 27, 2013
p.42
"Remembering"
Write an equation in slope­intercept form with the given information.
10) slope: ­4
9) slope: 9
11) point: (­3, 8)
y­intercept: ­1
point: (3, ­1)
point: (6, 2)
12) Evaluate g(x) = ­3x + 5 when g(­2).
13)
14) Write an equation for the line.
15) Write an equation for the line.
Given the function f(x) = 6x + 9, find f(x) = 21.
y
y
x
16) What is a function?
x
39­42 standard form.notebook
IF Thurs box
Write an equation in point­slope form of the line.
February 27, 2013
Checking:
p.37­38
Rewrite your equation in slope­intercept form.
39­42 standard form.notebook
p.37
February 27, 2013
39­42 standard form.notebook
p.38
February 27, 2013
39­42 standard form.notebook
1­4
5­8
Shen
9­12
13­16 Functions Review
17­20
21­24
25­27
28­30
31­34
35­38
39­42
February 27, 2013
Shen
Shen
Shen
Shen
Shen
Shen
Shen
Shen
Shen
3­4
7­8
Shen
Shen
11­12 Shen
15­16 Shen
19­20 Shen
23­24 Shen
27 Shen
29­30 Shen
33­34 Shen
37­38 Shen
40­42
Test is next Wednesday!
39­42 standard form.notebook
February 27, 2013
LT#7: I can write and graph equations in Standard Form.
What is Standard form?
p.39
Ax + By = C
3x ­ 6y = 4
Write equivalent equations.
x ­ y = 3
1.
How to write 1. find slope
2.
an equation 2. write equation in y ­ y
1 = m(x ­ x1)
in Standard 3. rewrite equation in y = mx + b
3.
form.
4. rewrite equation in Ax + By = C
4.
5. 5. check
Write an equation in Standard Form of the line.
slope: _____
point: _____
Write an equation in Standard Form of the line that passes through the 2 points.
point 1: (3, ­1)
point 2: (2, ­3)
39­42 standard form.notebook
February 27, 2013
A dog kennel charges $20 per night and $5 per doggie treat. b) Graph the a) Write an equation that equation.
models the possible combinations of nights and treats you can buy for $100.
x y
p.40
y
x = ______________
y = ______________
Ax + By = C
x
Summary:
1. Find slope
2. y ­ y1 = m(x ­ x1)
3. y = mx + b
4. Ax + By = C
5. Check.
39­42 standard form.notebook
February 27, 2013
CW (1, 3, 6, 11, 13)
P p.40­42
change
answers will vary.
answers
39­42 standard form.notebook
p.40
February 27, 2013
39­42 standard form.notebook
p.41
February 27, 2013
39­42 standard form.notebook
p.42
February 27, 2013
39­42 standard form.notebook
February 27, 2013