Post on 14-Jan-2016
transcript
(1,6)
(3,-2)
WEEK 25Thursday, Feb 13,2014
Find your test key under Week 25 (ALG10.0_testkey). Show your work on a half piece of paper.
10 Mins
Algebra1- 6.0: Students graph a linear equation and compute the x- and y- intercepts (e.g., graph 2x + 6y = 4).
Huskies will be able to identify the x and y intercept from standard form.
Ax + By = C
Ax + By = C
Graph 4x – 2y = 12
Graph 4x – 2y = 12
4x – 2y = 12
Graph 4x – 2y = 12
4x – 2y = 12-4x –4x
Graph 4x – 2y = 12
4x – 2y = 12-4x –4x –2y = -4x + 12
Graph 4x – 2y = 12
4x – 2y = 12-4x –4x –2y = -4x + 12-2 –2 -2
Graph 4x – 2y = 12
4x – 2y = 12-4x –4x –2y = -4x + 12-2 –2 -2
y = 2x - 6
Graph 4x – 2y = 12
4x – 2y = 12-4x –4x –2y = -4x + 12-2 –2 -2
y = 2x - 6
Graph 4x – 2y = 12
4x – 2y = 12-4x –4x –2y = -4x + 12-2 –2 -2
y = 2x - 6
Graph 4x – 2y = 12
4x – 2y = 12-4x –4x –2y = -4x + 12-2 –2 -2
y = 2x - 6
Graph 4x – 2y = 12
4x – 2y = 12-4x –4x –2y = -4x + 12-2 –2 -2
y = 2x - 6
Graph 4x – 2y = 12
4x – 2y = 12-4x –4x –2y = -4x + 12-2 –2 -2
y = 2x - 6
Graph 4x – 2y = 12
4x – 2y = 12-4x –4x –2y = -4x + 12-2 –2 -2
y = 2x - 6
Graph 4x – 2y = 12
4x – 2y = 12-4x –4x –2y = -4x + 12-2 –2 -2
y = 2x - 6
Graph 4x – 2y = 12
4x – 2y = 12-4x –4x –2y = -4x + 12-2 –2 -2
y = 2x - 6
Where does the line cross the y-axis?
Graph 4x – 2y = 12
4x – 2y = 12-4x –4x –2y = -4x + 12-2 –2 -2
y = 2x - 6
Where does the line cross the y-axis?
Graph 4x – 2y = 12
4x – 2y = 12-4x –4x –2y = -4x + 12-2 –2 -2
y = 2x - 6
Where does the line cross the y-axis?
(0, -6)
Graph 4x – 2y = 12
4x – 2y = 12-4x –4x –2y = -4x + 12-2 –2 -2
y = 2x - 6
Where does the line cross the y-axis?
(0, -6)
What is the value of x when it crosses the y-axis?
Graph 4x – 2y = 12
4x – 2y = 12-4x –4x –2y = -4x + 12-2 –2 -2
y = 2x - 6
Where does the line cross the y-axis?
(0, -6)
What is the value of x when it crosses the y-axis?
x = 0
Graph 4x – 2y = 12
Where does the line cross the x-axis?
Graph 4x – 2y = 12
Where does the line cross the x-axis?
(3,0)
Graph 4x – 2y = 12
Where does the line cross the x-axis?
(3,0) What is the value of y when it crosses the x-axis?
Graph 4x – 2y = 12
Where does the line cross the x-axis?
(3,0) What is the value of y when it crosses the x-axis?
y = 0
Find the x & y-intercepts of 4x – 2y = 12
Find the x & y-intercepts of 4x – 2y = 12
x = 0 y = 0y-intercept
x-intercept
Find the x & y-intercepts of 4x – 2y = 12
x = 0 y = 0y-intercept
x-intercept
4(0) – 2y = 12
Find the x & y-intercepts of 4x – 2y = 12
x = 0 y = 0y-intercept
x-intercept
4(0) – 2y = 12 -2y = 12
Find the x & y-intercepts of 4x – 2y = 12
x = 0 y = 0y-intercept
x-intercept
4(0) – 2y = 12 -2y = 12 y = -6
Find the x & y-intercepts of 4x – 2y = 12
x = 0 y = 0y-intercept
x-intercept
4(0) – 2y = 12 -2y = 12 y = -6
Find the x & y-intercepts of 4x – 2y = 12
x = 0 y = 0y-intercept
x-intercept
4(0) – 2y = 12 -2y = 12 y = -6
4x – 2(0) = 12
Find the x & y-intercepts of 4x – 2y = 12
x = 0 y = 0y-intercept
x-intercept
4(0) – 2y = 12 -2y = 12 y = -6
4x – 2(0) = 12 4x = 12
Find the x & y-intercepts of 4x – 2y = 12
x = 0 y = 0y-intercept
x-intercept
4(0) – 2y = 12 -2y = 12 y = -6
4x – 2(0) = 12 4x = 12 x = 3
Find the x & y-intercepts of 4x – 2y = 12
x = 0 y = 0y-intercept
x-intercept
4(0) – 2y = 12 -2y = 12 y = -6
4x – 2(0) = 12 4x = 12 x = 3
Find the x & y-intercepts of 4x – 2y = 12
y-intercept
x-intercept
Find the x & y-intercepts of 4x – 2y = 12
y-intercept
x-intercept
Find the x & y-intercepts of 3x + 6y = 24 and then graph the line.
Find the x & y-intercepts of 3x + 6y = 24 and then graph the line. x = 0
y-intercept
3(0) + 6y = 24 6y = 24 y = 4
y = 0x-intercept
3x + 6(0) = 24 3x = 24 x = 8
(0, 4)
(8,0)
y =
2x
+ 3
y =
2x - 5
y =
2x
+ 5
y =
2x
+ 1Coplanar
lines that never intersect.
Parallel (//) lines have the
slope.
What is the slope of the line // to y = -3x + 5?
What is the slope of the line // to y = -3x + 5? m// = -3
What is the slope of the line // to y = -3x + 5? m// = -3
What is the slope of the line // to x – 2y = 4?
What is the slope of the line // to y = -3x + 5? m// = -3
What is the slope of the line // to x – 2y = 4? y = x – 2
12
What is the slope of the line // to y = -3x + 5? m// = -3
What is the slope of the line // to x – 2y = 4? y = x – 2
12
m// = 12
Are the lines y = x + 6 and 2x – 6y = 30 //?
13
Are the lines y = x + 6 and 2x – 6y = 30 //?
13
-6y = -2x + 30
Are the lines y = x + 6 and 2x – 6y = 30 //?
13
-6y = -2x + 30
y = x - 5 13
Are the lines y = x + 6 and 2x – 6y = 30 //?
13
-6y = -2x + 30
y = x - 5 13 y = x + 6
13
Are the lines y = x + 6 and 2x – 6y = 30 //?
13
-6y = -2x + 30
y = x - 5 13 y = x + 6
13
Station Overview ≈ 20 mins
Collaborative Station- HOMEWORK TIME!!! (if you finish the worksheet…move on to the extra worksheet practice
Direct Station-Practice Problems with Ms. Ahumibe
Prior Knowledge Box (PKB)
Topic: Graphs Misconceptions
What did you think you knew but you found out was a misconception? If you didn’t have any prior knowledge, what did you learn/ review today?
Exit Slip- Intercepts and // lines
• Name• Date
• Period
Find your key under week 25 AlG6and8_test key
Agenda
Homework- Did you hear about…(worksheet)Bring a white board marker
(DUE: P.1,3,5- Mondays and Thursday. P.2,4,6- Tuesdays and Fridays)