Download Algebra I (292)

Algebra I (292)
Warm-ups 2st marking period
Warm-up #1 11/16/09
Determine the slope and the y-intercept.
A. 4x + 3y = 6
B. –x + y = 0
C. 2x = 4 – y
Warm-up #2 11/17/09
Write the equations in slope intercept form
based on the graphs.
A.
B.
Warm-up #3 11/18/09
Find the x-intercept and the y-intercept for each
equation. Write as an ordered pair.
B. y = 4x – 4
A. 3x + y = 1
C. 2y + 1 = 3x
Warm-up #4 11/23/09
Calculate the slope for each problem below
1. (2,5) (4,6)
2.
(2,5)
4
2
-5
5
(-1,2)
-2
-4
Warm-up #5 11/24/ 09
Write the equation of the line in slope intercept
form given the slope and a point on the line.
1. m = 2 (6,1)
2. m = -1 (5,3)
3
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Warm-up #6 11/30/09
Write the equation of the line in standard form.
1. y = 2x + 3
2. 4x – 1 = 3y
Warm-up # 7 12/01/09
A furniture store makes cabinets that range in
height. You know that a 36 inch cabinet costs
$210 and a 42 inch cabinet cost $270. Find the
cost per inch of cabinet. Write an equation for
the cost of cabinets based on the height of the
cabinet. How much would a 48 inch cabinet
cost?
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Warm-up #8 12/02/09
Write an equation for the line that is
perpendicular to y = 32 x + 4 and passes through
point (6, 3)
_____________________________________
Warm-up #9 12/04/09
Solve and graph.
x
1. 3  7
2. 4m > -23
3. –3x < 15
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Warm-up #10 12/07/09
Graph the line: y = -2x + 4
on the coordinate plane.
Warm-up # 11 12/08/09
Solve and graph.
1. 2a – 1.5  6
f
2. 4 + 8 < 7
Warm up #12 12/10/09
The new I-pod you bought cost $192 and each
song download is 79 cents per song. You paid
$265 for the total purchase. Find the maximum
number of songs you can download by writing
an inequality and solving it.
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Warm-up #13 12/14/09
Graph the line 2x – 3y = 6.
10
9
8
7
6
5
4
3
2
1
0
-1 -9 -8 -7 -6 -5 -4 -3 -2 -1-1 0
-2
0
-3
-4
-5
-6
-7
-8
-9
-10
1
2
3
4
5
6
7
8
9 10
Warm-up #14 12/15/09
Solve.
1. |w + 2 | = -6
2. -5|x + 7| - 10 = -15
Warm-up #15 12/16/09
Solve.
1. |6 – y | ≤ 2
2. | 3x + 4| > 10
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Warm-up #16 12/17/09
Solve and graph.
18 ≤ -x – 2 or 3x + 5 > -4
Warm-up #17 12/18/09
Write the inequality that is graphed.
10
9
8
7
6
5
4
3
2
1
0
-1 -9 -8 -7 -6 -5 -4 -3 -2 -1-1 0
-2
0
-3
-4
-5
-6
-7
-8
-9
-10
1
2
3
4
5
6
7
8
9 10
No Warm-up 12/21/09 - Notebook Quiz Chapter 6
Warm-up #18 1/05/10
Graph the line:
y = -3x + 2
Warm-up #19 1/06/10
Graph the inequality:
2
y ≥ 3 x -1.
10
9
8
7
6
5
4
3
2
1
0
-1 -9 -8 -7 -6 -5 -4 -3 -2 -1-1 0
-2
0
-3
-4
-5
-6
-7
-8
-9
-10
10
9
8
7
6
5
4
3
2
1
0
-1 -9 -8 -7 -6 -5 -4 -3 -2 -1-1 0
-2
0
-3
-4
-5
-6
-7
-8
-9
-10
1
1
2
3
4
5
6
7
8
9 10
2
3
4
5
6
7
8
9 10
Warm-up #20 1/07/10
Find the solution:
2x – 3y = 6
3y = 4x
Warm-up #21 1/11/10
Graph the following:
4x + 3y  12
10
9
8
7
6
5
4
3
2
1
0
-1 -9 -8 -7 -6 -5 -4 -3 -2 -1-1 0
-2
0
-3
-4
-5
-6
-7
-8
-9
-10
10
9
8
7
6
5
4
3
2
1
0
-1 -9 -8 -7 -6 -5 -4 -3 -2 -1-1 0
-2
0
-3
-4
-5
-6
-7
-8
-9
-10
1
2
3
4
5
6
7
8
9 10
1
2
3
4
5
6
7
8
9 10
Warm-up #22 1/12/10
Solve by substitution. 3y – 2x = 6
x=y+1
Warm-up #23 1/13/10
Warm-ups due on 1/21/10. You need 25.
Solve by substitution.
5x + 2y = -10

2
5y
x=
–4
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Warm-up #24 1/14/10
Solve using elimination. 3x + 2y = 18
3x – 2y = 6
Warm-up #25 1/15/10
Solve using elimination.
Warm-up #26 1/19/10
Solve using any method.
3x + 4y = 5
2x + 5y = 1
4x + y = 20
3x – 3y = 15
Warm-ups are due today. You need 25.
Warm-up #27 1/21/10 Solve for x. Graph the
solution.
4 x  7  10  2