Title: Standard 4.0: Students simplify expressions before solving linear equations and inequalities in one variable, such as 3(2x-5) 4(x-2) = 12
1Standard 4.0 Students simplify expressions
before solving linear equations and inequalities
in one variable, such as 3(2x-5) 4(x-2) 12
2These problems will involve solving equations and
inequalities. For equalities, you are solving for
the unknown variable. For inequalities, you are
once again getting the variable by itself,
remembering to flip the inequality sign when
multiplying both sides by a negative.
310
4Keep it POSITIVE!!! Move the smaller variable.
5Keep it POSITIVE!!! Move the smaller variable.
24
6Inequalities
Graphing Inequalities
0
2
7Solve and graph these linear inequalities.
SIGN FLIP
0
2
-9
0
80
13 9
9Plot the numbers on number line. If the x is in
the middle, shade in between, watch out for
open\closed circle.
10Solve, for and problems, you got to work on ALL
PARTS!!! Plot the numbers on number line. If the
x is in the middle, shade in between, watch out
for open\closed circle.
Note, if your inequalities are not in the same
direction, you messed up.
mess
11DIVIDE BY NEGATIVE, DOUBLE SIGN FLIP!!!
Solve, for and problems, you got to work on ALL
PARTS!!! Plot the numbers on number line. If the
x is in the middle, shade in between, watch out
for open\closed circle.
12OR
DIVIDE BY NEGATIVE, DOUBLE SIGN FLIP!!!
Solve, for OR problems, do each part separately.
Dont combine them. Plot the numbers on number
line. Graph both on the same number line.
13Try the following problems and click to reveal
the answers.
14Solve and graph Try the following problems and
click to reveal the answers.
15SOLVE, and then graph it.
16- Related book problems
- Pg 390 20-31 59-67
17- Useful websites
- Equations ? http//www.math.com/school/subject2/le
ssons/S2U3L1GL.html - Inequalities ? http//www.math.com/school/subject2
/lessons/S2U3L4GL.html