Algebra: Chapter 12, Lesson 6, page 561.
Inverse Variation
An equation of the form `y = k/x` where `k` is a constant, expresses inverse variation. Just like in direct variation, find the constant of variation, `k`, then use that to see what other variations can be derived from that constant.
Purplemath to the rescue, click here too!
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Algebra 1a: Chapter 5, Lesson 3, page 214.
Multiplying and Dividing Monomials
A monomial is an expression that is either a NUMERAL, an VARIABLE or a PRODUCT of numerals and variables with whole number exponents. If the monomial is a numeral, we call it a CONSTANT.
Using the properties we had from yesterday, we can use the associative and commutative properties to multiply or divide monomials.
For example, `(3x)(4x)=(3⋅4⋅x⋅x)=12x^2` or
`(x^5)(x^-2) =x^(5-2)=x^3`
Here are some more examples too!
Two of tonight’s homework problems solved by MrE are here! Just click it!