Shared Flashcard Set

Details

8th Grade Final
Units 1 - 3
39
Mathematics
8th Grade
12/04/2015

Additional Mathematics Flashcards

 


 

Cards

Term
Complementary Angles add up to
Definition
90 Degrees
Term
Supplementary Angles add up to:
Definition
180 Degrees
Term
Translation means the figure _____________
Definition

slides

moves left or right/up or down

Ex: (x, y) --> (x +1, y + 2)

Means over positive 1, up two

[image]

 

Term
Reflection means _________
Definition

Flip

*Images may reflect over the x-axis or y-axis

 

 

Term
Rule for Reflection over X-Axis
Definition
[image]
Term

Rule for Reflection over y-axis:

 

Definition
[image]
Term
Rotation of 180 Degrees clockwise or counter clockwise
Definition
[image]
Term

Describe the translation

(x, y) --> (x - 2, y +3)

Definition
Left two, up three
Term

Describe the translation:

 

(x, y) ---> (x, y + 5)

Definition
up 5
Term
Vertical Angles
Definition
When the angles are cross from each other, and equal.
Term
Which transformation give congruent figures from pre image to transformed image?
Definition

-translation

-reflection

-rotation

Term
Which transformation gives a similar figure?
Definition
-Dilation
Term
Corresponding Angles
Definition

When the angles are in the same position.

They are equal.


[image]

Term
Parallel Lines
Definition
Lines in the same plane that never intersect or cross.
Term
The sum of the interior angles of a triangle add up to:
Definition
180 degrees
Term
What makes two triangles similar?
Definition

SSS: all sides are proprtional

SAS: Two sides are proportional and an angle is equal

AAS: Two angles are equal

Term
A figure is dilated by a scale factor of 3. How do you find the coordinates?
Definition

Multiply each x and y by 3.

 

(3x, 3y)

Term
Congruent means:
Definition

All sides and all angles are equal

(EXACT SAME SHAPE)

Term
Need Help on Exponent Rules??
Definition

Go to this website:

http://www.onlinemathlearning.com/rules-of-exponents.html

Term
Multiplication Rule:
To multiply powers with the same base:
Definition
keep the base the same and add the exponents.
[image]
Term
Division Rule:
To divide powers with the same base
Definition

keep the base the same and subtract the exponents.

 

[image]

Term

Power Rule:
When a power is being raised to another power

 

*you see parentheses

Definition

keep the base the same and multiply the exponents.

 

[image]

Term

Zero Power:

 

Anything raised to the power of 0 equals

Definition
ONE!
Term

Negative Exponents:

 

You can rewrite these as a

Definition

Fraction with positive exponent

 

5-4 = 1/54

 

Term
What is an irrational number?
Definition

-A number that can not be written as a fraction

 

Popular examples:

pi, non repeating decimals, and square roots of imperfect numbers

Term
Rational numbers:
Definition

*fractions

*whole numbers

*decimals

*mixed numbers

*square roots of perfect squares

*cube roots of perfect cubes

*REPEATING DECIMALS

Term
How do we estimate a square root?
Definition

1). Find the lower and higher perfect square

2). take the square root of each

3). find out which perfect square it is closer to

Term
[image]
Definition
Between 3 and 4
Term
Steps to multiplying scientific notation numbers:
Definition

1). Multiply the coefficients

2). add the exponents

3). make sure final answer is in correct scientific notation form

 

[image]

Term
Steps to dividing numbers in scientific notation:
Definition

1). Divide the coefficients

2). subtract the exponents

3). make sure the number is in correct scientific notation form

 

[image]

Term

How to compare numbers in scientific notation:

 

Definition

1). Make sure exponents are the same

2). divide the coefficients

3). make sure final number is in correct scientific notation

 

*Check your notebook for examples. We did a lot :)

Term
How to add scientific notation numbers
Definition

1). Make sure exponents are the same

2). add coefficient numbers. Keep exponents the same as fixed in step 1.

3). make sure your final answer is in correct scientific notation form

Term
How to subtract in scientific notation form
Definition

1). Make sure that exponents are the same

2). subtract coefficient numbers and keep the exponent the same as fixed in step 1.

3). make sure final answer is in correct scientific notation form

 

*Check notebook for examples. We did a lot :)

Term
Pythagorean Theorem states:
Definition
When c is the hypotenuse:[image]
Term
The Hypotenuse
Definition

C

Longest side of right triangle

Across from right angle

Term
Converse of the Pythagorean Theorem
Definition

In order for the triangle to be Right:

A^2 + B^2 must equal C^2.

 

Term
Radius is always ___________ the diameter
Definition
Half
Term
Diameter is always____________ the radius.
Definition
Double
Term
Steps to solving equations with variables on both sides
Definition

1). Draw balance line

2). Move variables to one side.

3) move constant solo numbers to one side

4) solve one step equation

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