7.1 zero and negative exponents: base: a number that is multiplied repeatedly. exponent: a number...
TRANSCRIPT
7.1 Zero and Negative Exponents:
Base: A number that is multiplied repeatedly.
Exponent: A number that shows repeated multiplication.
Property: A character or attribute that something has.
PROPERTIES: ZERO: as an exponentFor every number a,
= 1Ex: 40 = 1 (-3)0 = 1 1000 = 1
1,000,0000 = 1 (-½) 0 = 1
SOLUTION: No matter what integer it is, anything to the power of zero is 1.
1) -1 0 = -1
2) (-1) 0 = 1
3) m 0 = 1
4) -1/3 0 = -1
NOTE: In math we never like to work with negative exponents.
Ex:
We must always provide answers with positive exponents.
3−2
−2−2
ALSO: If negative exponents are in the denominator, we still turn them into positive.
Ex: 1()
6() 6(4) =24
1(9) = 9
SIMPLIFYING EXPONENTIAL EXPRESSIONS: Once again, always give answers with positive exponents only!Ex: What is the simplified form of each expression?
a)5a3b-2 b)
c)4c-3r d)
VIDEO: Get a hot chocolate and
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http://www.khanacademy.org/math/algebra/exponent-equations/exponent-properties-algebra/v/negative-and-positive-exponents
Negative Exponents
Exponents Definition
Negative and Positive Exponents
http://www.khanacademy.org/math/algebra/exponent-equations/exponent-properties-algebra/v/exponent-properties-2
http://www.khanacademy.org/math/algebra/exponent-equations/exponent-properties-algebra/v/exponent-properties-1