An equation says that two things are equal.

It will have an equals sign "=".

It's is like a statement

~"this equals that"~

**Symbols and Variables**

Algebraic Expressions

Function Notations

Algebraic Expressions

Function Notations

**SOLVING**

EQUATIONS

EQUATIONS

Parts of an Equation

-a number that is used to multiply a variable (4x means 4 times x, so 4 is a coefficient)

- a symbol used to represent an unknown number, whose value can change.

**Constant**

A constant is a number by itself.

5 12 9 2 6 10 3 7

Example:

Variable

Coefficient

(4 is a coefficient)

(2 is a coefficient)

Operator

- a symbol that shows an operation

Add

Multiply

Subtract

Divide

Times,product,

equal groups of

Minus,difference,

less than

Divided by,

quotient

Plus, sum,

increased

by

Terms

Terms are the parts of an expression

or an equation that are separated by

"+" sign or a "-" sign.

Algebraic Expression

an expression built up from

intiger constants, variables, and the algebraic operation(terms)

2 Types of equations

One step

Two step

Solving One step equations

Solving

two step equations

Function Notation

- a system of symbols which is an efficient and effective way to display functions of any type.

Function Notation

Symbol

Writing Functions using

Function Notation

y= f(x)

A Function Notation

Problem

y = 2x -3

f(x) = 2x -3

**If x = 3**

f(3) = 2(3) -3

= 6 -3

=3

f(3) = 3

Symbol:

~Equation

What makes it up(symbols,variables,etc.)

How to solve them(one-step & two-step)

~Function Notation

Definition

Meaning of the symbol

How to solve a Function Notation problem

What has been reviewed

**THE END**

Quiz

Find the value of x.

1.) x + 14 = 20

a.)x = 5

b.)x = 3

c.)x = 8

d.)x = 6

2.)9x + 3 = 21

a.)x = 3

b.)x = 2

c.)x = 7

d.)9x = 18

Answer:

D

Answer:

B