1. Lesson 5­1.notebook
Assignment:
1­­>L5.1, pg. 286, #1­6, 9, 12­23, 30­31 ­ Due Tomorrow (10/30)
2­­>L5.2, pg. 293, #2­30 (evens) ­ Due Thursday (10/31)
3­­>Test signed??
October 29, 2013

2. Lesson 5­1.notebook
Lesson 5.1 WarmUp:
Write an equation in point­slope form for the line that
passes through each point with the given slope.
1) (5, 3), m = 7
Write each equation in standard form.
2) y ­ 10 = 2(x ­ 8)
3)
2y + 3 = ­1/3(x ­ 2)
Write each equation in slope­intercept form.
4) y ­ 11 = 3(x + 4)
5)
y + 4 = 3(3x + 3)
October 29, 2013

3. Lesson 5­1.notebook
October 29, 2013
Lesson 5.1:
*To solve inequalities...use the same "steps" that you would for solving
equations...
*ISOLATE the variable
*To "undo" addition ­ subtract
*To "undo" subtraction ­ add
*For < or >...do NOT fill in the circle on the graph
*For < or >...DO fill in the circle on the graph

4. Lesson 5­1.notebook
*Key phrases:
at most... <
no more than... <
at least... >
no less than... >
October 29, 2013

5. Lesson 5­1.notebook
October 29, 2013
Lesson 5.1 examples:
Solve each inequality. Then graph the solution on a number line.
A) x ­ 5 > 7
­10 ­9
B)
­8
­7
­6
­5
­4
­3
­2 ­1
0
1
2
3
4
1
2
3
6
7
5
6
8
9
10
12 < p + 8
­10 ­9
C)
5
9 + g > 10
­8
­7
­6
­5
­4
­3
­2 ­1
0
­10 ­9
­8
­7
­6
­5
­4
­3
­2 ­1
0
1
2
3
4
4
5
6
7
7
8
8
9
9
10
10

6. Lesson 5­1.notebook
Define a variable, write an inequality, and solve each problem. Check your
solution.
D) A number increased by 8 is at least 12.
E)
A number decreased by 10 is no more than 5.
October 29, 2013