Equations
What is a equation
a statement that the values of two mathematical expressions are equal
What is a inequality
the relation between two expressions that are not equal
What is a expression
a collection of symbols that jointly express a quantity
A word problem is??
commonly include mathematical modelling questions
A graph is??
a diagram showing the relation between variable quantities, typically of two variables
What does a variable represent in a equation
A variable is a symbol such as x used to describe any number
Graph inequality in one variable
Won’t let me put images
How to identify like terms
Comes in a expression that have the same Variable raised to the same power.
How to simplify expressions with within equations before solving for a given variable.
If the equation is in the form ax +b = c where X is the variable you can solve the equation as before.
Two step inequality
2x-12=5
How to simplify algebraic expressions
Use the distributive property to get rid of the parentheses
rewrite like terms together
Combine like terms
How to use algebraic equations to solve real-world problems.
Landscaping your backyard like how much grass to buy.
One step inequality
X-2>4
How to factor out the greatest common factor
Write each term in prime factored form
Identify the factors common in all terms
Factor out the gfc
How to solve equations for a given variable
Solving for X
Example : 3/4X -y=8
what happens to the inequality when you multiply or divide by a negative number
You swap the inequality
How we use Algebraic expressions in real world life
Exchanging money
Comparing prices
Dividing something into equal pieces