When graphing inequalities, which symbols have an OPEN circle?
< Less Than
> Greater Than
Is the statement true
2x > -6
x = -3
False
Solve AND Graph
-12 < -7x + 6 + 4x
x < 6
Solving Inequalities
Solve for x.
4x + 3 < 7
What is:
x < 1
Solving Inequalities
Solve for x.
-2x + 5 < 13
x > -4
When graphing inequalities, which inequality symbols have a CLOSED circle?
≤ : Less Than or Equal to
≥ : Greater than or Equal to
Is the statement true?
2k + 10 > 30
k > 10
True
Write and solve:
The difference between a number and 48 is at most 6
x - 48 < 6
x < 54
Solving Inequalities
Solve for x.
2x - 5 > 11
What is:
x > 8
Jim has 35 dollars saved and earns 10 dollars for every lawn he mows. He wants to have more than 110 dollars so he can buy a new skateboard. Write an inequality to model this situation.
35 + 10x > 110 OR
10x + 35 > 110
Which direction do we shade for x < -3 ?
What is
Left
We use an open circle to represent the inequalities < and > ?
True
Solve the Inequality
z/-3>7
z < -21
Solving Inequalities
Solve for x.
9x - 1 > 71
What is:
x > 8
Solving Inequalities
Solve for x.
-5x - 16 < 34
x > -10
Is the following inequality graphed correctly?
x < 6
No, the graph shows x > -6
If graphing x < 5, we would put an open circle on 5 and shade to the right.
False.
Solve the Inequality
-7x < -14
x > 2
Solve for v.
v/3+14<30
v < 48
Barry has 16 dollars to spend. He wants to buy a notebook for $2.75, and as many whiteboard markers as possible. Whiteboard markers cost $1.50 each. Write and solve an inequality to find how many markers Barry can buy.
Barry can buy 8 markers or less
What are these symbols called:
< , ≤ , > , ≥?
(The answers are not less then, greater then, etc.)
What is
Inequalities
To solve this inequality, you must flip the symbol:
3x - 6 > -12
False
Write AND Solve
The cost of 3 apples is less than $5.
x < $1.67
Inequalities
3x - 4 > 11
x > 5
Solve the Inequality
-2x - 5 < -7
x > 1