The Flip
Graphing
Solving
Error Analysis
Word Problems
100
When do you flip the inequality sign?
When you multiply or divide by a negative number on both sides of the inequality.
100
What type of inequality symbol is graphed with an open circle?
< or >
100
Solve.
-x -4x> -10
x<2
100
Kailyn says 4 is a solution to x > 4. Why is she wrong?
The inequality symbol is greater than, so it does not include the 4.
100
Which inequality symbol means AT MOST?
<=
200
Solve.
-2x<=18
x>=-9
200
Write the inequality represented on the graph.
x<=1
200
Solve.
6x+ 2 + 6x < 14
x<1
200
David says -8 is the solution to x. Is he right? If not, what is the correct answer?
x+5>=-2
No, the correct answer should be:
x>=-7
200
Write the sentence as an inequality.
Three is less than a number x plus 5.
3<x+5
or
x+5>3
300
Solve.
-3x- 35 < -5
x >-10
300
Which graph shows the solution to the inequality: -3x - 5 < -2
Choice A
300
Solve.
-6(6x-7)<=-138
x>=5
300
Identify the mistake, then tell the correct answer.
-2 + 2 = 0, not -2
Answer should be x>0.
300
You have $12 to buy five goldfish for your new fish tank. Write and solve an inequality that represents the prices you can pay per fish.
x>=$2.40
400
Solve.
-2(x + 5) > 4x + 14
x<-4
400
Solve & graph.
-6(4y-2)>=-102
400
Solve.
6-4(6x+7)>=122
x<=-6
400
Identify the mistake, then say the correct answer.
They added 7x on the left, instead of combining like terms: 2x - 7x is -5x.
The answer should be: x > -9
400
Saveon wanted to start his own painting business. He bought a ladder and some supplies for $180. He plans to charge $10 per hour painting. How many hours will Saveon have to work if he is to make at least a profit of $750?
x>=57
500
Solve.
-3/4x-1/8<=-1/4
x>=1/6
500
Graph the solution to:
b/4-12> -11
500
Solve.
-5n+6>=-7(5n-6)-6
n>=1
500
State the error, then tell the correct answer.
-6 and -6 equal -12, not 0
The answer should be:
x<=6
500
Ryan had $25 to spend at the fair. If the admission to the fair is $4 and the rides cost $1.50 each, write an inequality to represent this situation. Then, state what the greatest number of rides are that he can go on?
1.50x + 4 <=25
x<=14