algebra formulas and definitions
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| whole numbers | counting numbers and 0: 0, 1, 2, 3, ...
🗑
|
||||
| integers | positive whole numbers, their opposites, and zero: ..., -3, -2, -1, 0, 1, 2, 3, ...
🗑
|
||||
| rational numbers | written as decimals, rational numbers terminate or repeat.
🗑
|
||||
| irrational numbers | irrational numbers are numbers that cannot be writteen as fractions and dont terminate.
🗑
|
||||
| variable | a letter or a symbol used to represent a value
🗑
|
||||
| constant | a number or variable that doesnt change
🗑
|
||||
| - | minus, less than, diffrence
🗑
|
||||
| + | addition, more than, plus
🗑
|
||||
| / | divided by, quotient
🗑
|
||||
| x | times, product
🗑
|
||||
| absolute value | a numbers distance from zero on a number line. it is indicated as |#|
🗑
|
||||
| opposites | two numbers are opposites if their sum is zero. a number and its oppposite are the same distance from zero. They have the same absalute value.
🗑
|
||||
| additive inverse | a number and its opposite.
🗑
|
||||
| +++ | positive
🗑
|
||||
| -+- | positive
🗑
|
||||
| ++- | negative
🗑
|
||||
| -++ | negative
🗑
|
||||
| exponent | tells how many times the base is used as a factor.
🗑
|
||||
| base | is the number that is used as a factor.
🗑
|
||||
| perfect square | is a number whose positive square root is a whole number.
🗑
|
||||
| natural numbers | counting numbers
🗑
|
||||
| whole numbers | are counting numbers and zero
🗑
|
||||
| integers | whole numbers and their opposites
🗑
|
||||
| rational numbers | can be expressed in the form a/b where a and b are both inetegrs and b
🗑
|
||||
| terminating decimals | are rational numbers in decimal form that have a finite number of digits
🗑
|
||||
| Repeating | decimals are rational numbers in decimal form that have a block of one or more digits that repeat continuisly.
🗑
|
||||
| P.E.M.D.A.S | parentheses, exponents, multiply or divide, add or subtract
🗑
|
||||
| associative property | when you are only adding or multiplying you can group any of the numbers together.
🗑
|
||||
| equation | contains 2 variables can be used as a rule to generate ordered pairs.
🗑
|
||||
| ordered pair | (x,y)
🗑
|
||||
| function notation | y=f(x)
🗑
|
||||
| one-ste equation | isolate the variable by inverse operations, you must do the same exact thing on the other side.
🗑
|
||||
| Two-step equation | isolate the variable by inverse operations
🗑
|
||||
| when solving inequalities... | multiply or divide by a negative #, flip!!!
🗑
|
||||
| linear function | is a function whose graph forms a straight line.
🗑
|
||||
| y intercept | where the graph intersects the y-axis.
🗑
|
||||
| x intercept | where the graph intercets the x-axis
🗑
|
||||
| rate of change | is a ratio that compares teh amount of change in a dependent variable to the amount of change in an independent variable.
🗑
|
||||
| rise | is the difference in the y-value of two points on a line.
🗑
|
||||
| run | is the diffrence in the x-value of two points on a line.
🗑
|
||||
| slope | is the ratio of rise to run for any two points on the line.
🗑
|
||||
| positive slope | line rises from left to right
🗑
|
||||
| negative slope | line falls from left to right
🗑
|
||||
| zero slope | horizontal line
🗑
|
||||
| undefined slope | vertical line
🗑
|
||||
| Direct Variation | is special type of linear relationship that can be written in the form y=kx, when k is a non-zero conctant called the constant of variation.
🗑
|
||||
| real numbers | Real numbers include all rational and irrational numbers.
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
face:)
Popular Math sets