When graphing inequalities, which symbols have an OPEN circle?
< Less Than
> Greater Than
Is the statement true
2x > -6
x = -3
False
Solving Inequalities
Solve for x.
2x > 8
What is:
x > 4
Solving Inequalities
Solve for x.
x + 3 < 7
What is:
x < 4
The golf outing charges $13.50 an hour. If Mai has $200 to spend. How many hours can she golf?
13.50x<=200
x<=14.8
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 + 30 > -10
k > -20
True
Solve the Inequality
x + 4 < -88
What is:
x < -92
Solving Inequalities
Solve for x.
x - 5 > - 11
What is:
x > -6
20+8x>=30
x>= 1.25
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/30>70
z > 2,100
Solving Inequalities
Solve for x.
9x > -72
What is:
x > -8
5 barrels catch rainwater in the schoolyard. Four barrels are the same size, and the fifth barrel holds 10 liters of water. Combined, the 5 barrels can hold at most 200 liters of water. Write an inequality and solve.
4x+10 <= 200
x<=47.5
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
4x < -14
NOTE: The answer is NOT an integer.
x<7/2
or
x<-3.5
Which way will I draw my line for this inequality?
x < -3
left
28 students travel on a field trip. They bring a van that can seat 12 students. Elena and Kiran's teacher asks other adults to drive cars that seat 3 children each to transport the rest of the students. Write and solve an inequality to see how many cars are needed.
12+3x>=28
x>=5.33
What are these symbols called:
< , ≤ , > , ≥?
(The answers are not less then, greater then, etc.)
What is
Inequalities
-2 is less than -10
False
Solve the Equation:
f - 9 < -58
What is:
f < -49
Inequalities
3x - 2 > 11
NOTE: The answer is NOT an integer.
x>13/3
or
4.hat3
Lin is selling boxes of cookies. Each box cost $4.25. She already sold 2 boxes. Her goal is to earn more than $50. Write and solve an inequality to solve how many boxes Lin needs to sell to meet her goal.
8.50 + 4.25x >= 50
x>=9.76