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26 Cards in this Set
- Front
- Back
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Algebraic Expression
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An algebraic expression is made up of three things: numbers, variables, and operation signs such as + and -. No equal sign. examples: 6x+3+h 4xz-7 |
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Coefficient
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The constant in a term. If it is one, often it is not written in the term. examples: 4f,7y,3h,9o,3l,2s |
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Combining Like Terms
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To add or subtract terms with the same variables. examples 6a+8a 4+7 5y+7y |
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Complex Numbers
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numbers with both real and imaginary parts example:4+2i,-3+2/3i,n |
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Constant
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A number whose value never changes. example:-7, 6,8, 9 |
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Counting NUmbers
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the natural numbers of the numbers used for counting example:1,2,3,4,5,6,7 |
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Decimals
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numbers with non-whole number parts example:6.4, 9.5, -8.7 with a bar over 7 |
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Distributive Property
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The distributive property states that multiplying a sum by a number gives the same result as multiplying each addend by the number and then adding the products together. example 5(9+y) 45+5y |
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Equation
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A mathematics statement that uses an equals sign to show that two expressions are equivalent. example 6g+7=8y 8j+9=0 5d+y=89 |
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Evaluate
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Find the value of an algebraic expression by replacing the variable(s) with the correct numerical value(s) to perform the operation. example 2x+3=21 (x=9) 2(9)+3=21 18+3=21 21=21 6y+7=49 (x=7) 6(7)+7=49 42+7=49 49=49 |
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Imaginary Numbers
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Numbers with negative square roots. Designated with the letter i. examples:square root of -1 = i, square root of -4 = 2i |
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Inequalities
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A mathematics statement that uses an inequality sign to show that two expressions are equivalent. examples 7<=9 4x+89>=y |
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Integers
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Whole numbers and their opposites. examples:-5,-4,-3,-2,-1,0,1,2,3,4,5 |
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Irrational Numbers
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Numbers which are not rational, hence their decimals do not terminate or repeat. examples:pi, e |
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Negative Integers
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All real numbers that are less than zero. examples:-6,-9,-8.4,-4.3 |
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Positive Integers
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All real numbers that are greater than zero. examples:7, 3.4, 6, pi |
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Rational Numbers
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All numbers which can be expressed as a/b where a and b are integers, but not zero. examples:¾, -⅚ , -4.888 |
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Real NUmbers
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All rational and irrational numbers examples:e, 6, -9/7 , pi, 4.6 |
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Reapeating Decimals
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Decimals that do not end, but have a pattern that repeats infinitely. examples:.333, 16 with a bar over the one and the six |
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Simplify
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To make an algebraic expression more simple. examples: 6x+3x+9 9x+9 |
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solve
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To isolate one variable. Only used if there is an equal sign. example:y=87,u=9+7,v=p+3 |
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substitution
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To replace the variable(s) in an algebraic expression or a formula with concrete number(s) example:x=9+uy 4x+y=9 4(9+uy)=9 |
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Terminating Decimal
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Decimals that end. example:6.7, 8.4, 5.8
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Term
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A group of constants and/or variables which are multiplied or divided. If there is more than one term in an expression or equation, they are separated by an addition, subtraction, or equal sign. example:6w,7u,ui,8f,gh,zy,7o,kl |
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Whole Numbers
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The counting numbers and zero. example:0,1,2,3
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Variable
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An unknown quantity usually represented by a lowercase letter. example: 4h,8k,9l,3j |
