Inequalities
If y ≥ 5, write 3 possible solutions for y
5 and greater
x - 10= 27
x=37
Write x > 5 by drawing a number line.
Arrow towards greater numbers
A mathematical sentence that uses <, ≤, >, ≥, and ≠ to compare 2 quantities.
What is an inequality?
Your grade.
How much you study.
Which is the dependent variable?
Your grade
If t ≤ 169 write 3 solutions to this inequality.
169 and less
5x=335
x=67
Write x ≤ -1 by drawing a number line.
Closed circle Arrow toward smaller numbers
What is an expression?
You can use an example to explain.
Does not have an equal sign.
How much a flower grows.
How much it rains.
Which is the independent variable?
How much it rains.
If x ≥ 45
x=50
Is this a solution?
Yes
24/r=2
r=?
12
Write x < 0 by drawing a number line.
Open circle
Arrow toward lesser numbers
Define dependent variable.
A variable that relies or depends on another variable.
How far you have to drive.
How much gas you need.
Which is the independent variable?
How far you drive.
If m ≤ 7
m=7.5
Is this a solution?
No
30 + z = 65
z=?
z=35
Write x > 3 by drawing a number line.
Open circle
Arrow towards greater numbers
A variable whose value usually determines the value of another variable, however is not affected by any other variable.
What is a independent variable?
Where you will stand in a group picture.
How tall you are.
Which is the dependent variable?
Where you will stand in a group picture.
If a > 9 write a decimal and a fraction solution.
greater than 9
3.8p=19
p=?
5
Closed circle
Arrow towards lesser numbers.
Define inverse relationships:
Operations that undo each other.
Example: addition and subtraction
multiplication and division
How many cars washed at a car wash.
How much money made.
Which is the independent variable?
How many cars washed at a car wash.