College algebra cheat sheet

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question
solving linear equations
answer
1. simplify (distribution, combine like terms 2.move x to one side by add/sub 3.add/sub the constant on variable side to each side 4.multiply or divide by coeffiecient to each side
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characteristics of linear functions
answer
no exponents on the variable
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solving quadratic equations
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1. make equal to zero 2.write in order ax^2+bx+c 3. factor, quadratic formula
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factoring quadratics
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1. multiply a*c 2. make a factor/sum table of a*c 3. match the exact sum to b 4. rewrite equation as these factors (x+one factor of the factor sum)(x+other factor of factor sum) 5.If a=1 you are done congrats if a is not 1, then divide each constant by \"a\" and reduce a. take the bottom of the fraction of each constant and bring it up in front of the variable, bottoms up.
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Quadratic formula
answer
x=(-b+- squareroot(b^2-4ac))/2a
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charateristics of quadratics
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1. varaible has to have a degree of 2 2. has at most 2 answers 3.most of the time has three terms
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Square roots
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1. is to solve for the square root by add/sub and or multiply/divide 2. square each side 3. repeat till no more square roots solve for x
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chararteristics of square roots
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1. has a square root symbol
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solving absolute values
answer
1. solve for absolute value 2.get rid of absolute value signs and make 2 equations. make them equal the vaule of the answer one positive one negative.
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