On the Number line
How would you put x>3 on a number line?
Plot an open circle on the 3 and shade towards the right.
What does "more than" mean?
To add
Evaluate: x-10<7
x<17
Evaluate:14/x>9
x>98
Evaluate: 2x</=88
x</=44
How would you plot x<-47 on a number line?
Plot a open circle at the -47 mark and shade towards the left.
What operation should you do first in an inequality?
Addition or subtraction (whichever comes first.)
What does "less than" mean?
To subtract
What is the opposite of division?
Multiplication
What does "times" mean?
To multiply.
Why would you plot a closed dot on a number line for an inequality?
A closed dot means that the variable could be equal to the number.
Evaluate: 72+x</=100
x</=28
Evaluate: 61-x>37
x>98
Evaluate: 9/x>/=18
x>162
What is a coefficient in an inequality?
A number right in front of the variable to multiply.
How would you plot the answer to this inequality: 65+x>49
Plot a open circle on -16 and shade towards the right.
Evaluate: 25+x</=62
x</=37
Evaluate: 2x-x</=6 (x=6)
x</=6
Evaluate: 44/x>/=11
x>/=484
Evaluate: 27x</=135
x</=5
How would you plot this inequality, 84x</=4,704
You would plot a closed dot on 56 and shade towards the left.
Evaluate: 49+x>-6
x>-55
Evaluate: 0.5-x>-10
x>-9.5
Evaluate: 37/x>-14
x>-518
Evaluate: 26x>/=-26
x>/=-1