midterm flashcards
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- Real number
- all of the rational and irrational numbers
- rational
- any # than can be expressed as a fraction
- irrational
- can not be expressed as a fraction
- closure
- given a set and a given operation performed on elements in the set. If the result gives an element in the set then the set is closed with repect to the set.
- natural numbers
- all the whole numbers but o
- whole numbers
- any number greater that -1
- Integers
- {...,-2,-1,0,1,2,...}}
- slope
- change in y over change in x
- slope-intercept form
- y=mx+b
- parabola
- nor a constant change but a pattern
- additive property of equality
- a=b than a+c=b+c
- subtraction property of equality
- a=b a-c=b-c
- multiplicitive property of equality
- a=b then ac=bc
- division property of equality
- a=b then a/c=b/c
- equivalence property
- a=b then b=a
- symetric property
- a=b b=c then b=a
- identity element
- 1 for multiplication and 0 for addition