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14 Cards in this Set
- Front
- Back
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a statement that two expressions are true
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equations
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standard form of a linear equation with one variable
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ax+b=0
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put solution of an equation in a
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solution set { }
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an equation that satisfied by every number that is a meaningful replacement for the variable
a equation is true no matter what the value of x is |
identity
answer {all real numbers} |
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an equation that is satisfied by some numbers but not others x=5
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{5} contitional
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an equation as no solution
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the empty set
null set 0 with a / thru the 0 |
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-2 to the fourth power
versus (-3) to the second power |
-16 (the negative must be in ( -2)
-3 x -3 = 9 |
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1.6
is an equation that has a rational expression for more than one or more terms |
rational equation
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{p/q} p an q are inters and
q does not =0 The quotient of two polynomials P and Q with Q not equal to 0 |
rational number or
rational expression |
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WHY IS THE DOMAIN OF A RATIONAL EXPRESSION IS THE SET OF ALL REAL NUMBERS FOR WHICH THE EXPRESSION IS DEFINED?
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BECAUSE THE DENOMINATOR OF A FRACTION CANNOT BE 0
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SO WHAT IS THE DOMAIN OF A RATIONAL NUMBER?
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THE DOMAIN CONSIST OF ALL REL NUMBERS EXCEPT THOSE THAT MAKE THE DENOMINATOR 0
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DIFFERENCE OF A SQUARE
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X SQUARED MINUS
Y SQUARED EQUALS (X+Y)(X-Y |
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DIFFERENCE OF SQUARE:
4xSQUARED-49= |
(2x+7)(2x-7)
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36xTO THE FOURTH) -(MINUS)
25y TO THE 2ND = |
(6xTO THE 2ND MINUS 5y) times
(6x to the 2nd) plus 5y |
