#### Transcript of 8th Grade Math Project

Rational And Irrational Numbers

Definition:

Examples:

The exponent of a number says how many times to use that number in a multiplication.

It is written as a small number to the right and above the base number.

8x8=64; 5x5x5=125

A number that can be expressed as the ratio of two integers. Examples of Rational Numbers •5 . You can express 5 as which is the quotient of the integer 5 and 1.

• All repeating decimals are rational. It's a little bit trickier to show why so I will do that elsewhere.

•.9 is a rational number because it can be expressed as 9/10 (All terminating decimals are rational numbers)

•.73 is a rational number because it can be expressed as 73/100

Definition: A graph of plotted points that show the relationship between two sets of data.

Definition:The Distance Formula is a variant of the Pythagorean Theorem that you used back in geometry.

***My Journey In 8th Grade Math***

**By: Yasmine Ware**

Exponents

Definition:Where a number is written in two parts:

First: just the digits (with the decimal point placed after the first digit),

Followed by: ×10 to a power that would put the decimal point back where it should be.

Example: Slope = Change in Y

Change in X

Examples:

Definition: It is like a machine that has an input and an output.

And the output is related somehow to the input.

Scatter Plots

Distance Formula

Definition:is the quantity of three-dimensional space enclosed by some closed boundary.

Volume

Pythagorean Theorem

Scientific Notation

Examples: 3.2x10^1

Slope

Definition:

The slope is also called the gradient of line. It shows how steep a straight line is

Functions

Definition: The theorem that the square of the hypotenuse of a right triangle is equal to the sum of the squares of the other two sides.

**Two Step Equations**

Definition:An equation that needs two steps to solve. Linear Equations often need two steps to solve.

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