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If you had an equation like
7x+4 + 3x +2 you would
separate like terms like this.
7x+3x + 4+2 add these
together to get
10x + 6 to get your answer
A coefficient is the number before
the variable for example in 5x the 5
is a coefficient and x Is variable. If
you had an equation like
5x+3-2x. 5 and 2 are coefficients abut 3
is a constant because it doesn't have a
variable behind it.
Distributive Property is when you take an equation like
2(1+2) and solve it by distributing 2 like this
2(1+2)
and
Exponents are the shortened
expression of a repeated equation for
example if you had.
2x2x2x2x2x2x2x2 an exponent of it
would be
2^8
To multiplying fractions all you have to
do is multiply the numerators together
and then multiply the denominators
together like this.
2/3 x 4/5 = 8/15
The Cartesian is a type of graph were you mark a point on a
graph by using the x and y coordinates, like this.
= 5,6
The line that goes up or down
(horizontal on a graph
Integers are whole numbers (numbers with no
fraction 1,2,3,4,etc.) but also include negative
numbers.
When you are multiplying fractions the “saying”
you would use to describe it is just do it fro
example if you had.
2 X 3
3
4
You would just do 2x3
and 3x4 to get 6/12
In an equation like 3x + 2 + 3x = 4x – 2
all of the numbers with a variable at
the end are like terms and all of the
numbers without a variable are like
terms. If I was to group them it would
be 3x, 3x, 4x and 2,-2
Modeling polynomials is just drawing a picture
to represent the numbers
-1 Tile
+1 tile
+X tile
-X tile
+ x^2
- x^2
The numerator is the top number in a
fraction for example: 2/3. when you
multiply fraction you just and the two
numerators together as well as the
denominators
The order at which you do an equation
“BEDMAS.” In an equation you would do
brackets than exponents than divide and or
multiplication and adding or subtraction
When you have an equation
written like this (3^2)^3 this written
out would be. (3^2)(3^2)(3^2)
This law means you times the
two powers together for
example (3^2)^3 would = 3^6
The answer you get when you
divide two numbers together for
example in 8/4 = 2. 2 is the
quotient 8 is the dividend and 4
is the divisor.
A rational number is a number you can right
as a fraction. Numbers like 5,1.75 and .001
can be written as fractions 5/1 7/4 and
1/1000 so they are all rational numbers.
We learned how to calculate the
surface area of an 2 objects but
together like this you would have to ad
up the two surface areas by doing
SA= 2(l X w + w X h + hXl) the subtract
the are off the base of the smallest
prism the add up the two areas and
subtract the base twice
A trinomial is a polynomial
with three terms so 3x2 − 3y2
+ 2 is a trinomial but 55+ 9x5
wouldn't it would be a
binomial
Unlike like terms unlike terms are number
that don’t match like 2x and 3 these are
unlike terms because you cant mix these
together you cant have 3+2x you have
to do other steps to find the answer you
can just add them together
A variable is the letter in an
equation like in 2x + 3 – 4 x
behind two is a variable.
Variable can also be by
themselves like in an equation
like 2 + x – 2 X is also a variable
Whole numbers are simple plain
numbers like 1,2,3,4 but unlike
integers they do not include
negative numbers
The line that runs horizontally
through a graph
The line that runs vertically
through the graph
Zero pairs is when you have two
numbers that cancel each
other out for example +1 and -1
make a zero pair. If you had the
equation 5x + 3 – 5x the to 5x
would cancel each other out
because they one is a negative
and one is a positive