Download Algebra I (292)

Algebra I (292)
Warm-ups 2st marking period
Warm-up #1 11/10/08
Determine the slope and the y-intercept.
A. 4x + 3y = 6
B. –x + y = 0
C. 2x = 4 – y
Warm-up #2 11/11/08
Write the equations in slope intercept form
based on the graphs.
A.
B.
Warm-up #3 11/12/08
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 11/17/08
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 11/18/ 08
Write the equation of the line in standard form.
1. y = 2x + 3
2. 4x – 1 = 3y
______________________________________
Warm-up #6 11/19/08
Write the equation of the line in slope intercept
form given the slope and a point on the line
1. m =
2
3
(6,1)
2. m = -1
(5,3)
Warm-up # 7 11/20/08
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?
Warm-up #8 11/21/08
Are the lines parallel, perpendicular, or neither?
A. 2x – y = 4
1
y = - 2 x+ 3
B. 4y + 8 = 2x
2y - x = 5
Warm-up # 9 11/24/08
Write an equation for the line that is
perpendicular to y = 32 x + 4 and passes through
point (6, 3)
Warm-up #10 12/02/08
Handout 5.6 Practice A
___________________________________
Warm up # 11 12/03/08
Write the equation of a line that is perpendicular
to y = 2x + 3 and passes through point (2,4).
Warm-up # 12 12/4/08
Solve and graph.
x
1. 3  7
2. 4m > -23
3.
Warm-up # 13 12/8/08
Solve and graph.
1. 2a – 1.5  6
f
2. 4 + 8 < 7
–3x < 15
Warm up #14 12/09/08
The new I-pod you bought cost $192 and each
song download is 79 cents per song. You saved
$265 for the total purchase. Find the maximum
number of songs you can download by writing
an inequality and solving it.
Warm-up #15 12/10/08
Solve the inequalities
1. -8 ≤ -2x ≤ 6
2. 6 - 4r > 10 or 2r + 10 > 12
No warm up on 12/11/08- Quiz
Warm-up #16 12/12/08
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 #17 12/15/08
Solve.
1. |w + 2 | = -6
2. -5|x + 7| - 10 = -15
Warm-up #18 12/16/08
Solve.
1. |6 – y | ≤ 2
Warm-up #19 12/17/08
Solve.
18 ≤ -x – 2 or 3x + 5 > -4
2. | 3x + 4| > 10
Warm-up #20 12/18/08
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 12/19/08 - Notebook Quiz Chapter 6
No Warm-up until 1/5/09
Warm-up #21 1/05/09
Graph the inequality
y≥
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
2
x
3
3
4
-1.
5
6
7
8
9 10
Warm-up #22 1/06/09
Find the solution: 2x – 3y = 6
3y = 4x
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 #23 1/07/09
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
Warm-up #24 1/08/09
Solve by substitution.
1
2
3
4
5
6
7
3y – 2x = 6
x=y+1
8
9 10
Warm-up #25 1/09/09
Warm-ups due on 1/16/09. You need 27.
Solve by substitution.
5x + 2y = -10
x=

2
5y
-4
Warm-up #26 1/12/09
Solve using elimination. 3x + 2y = 18
3x – 2y = 6
Warm-up #27 1/13/09
Solve using elimination.
3x + 4y = 5
2x + 5y = 1
Warm-up #28 1/14/09
Solve using any method.
4x + y = 20
3x – 3y = 15
Warm-ups are due tomorrow. You need 27.
Warm-up #29 1/15/09
Solve for x. Graph the solution.
4 x  7  10  2