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Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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What is an algebraic expression? | When numbers and variables are combined using the operations of arithmetic.
a + b
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What is an algebraic sentence? | Consists of expressions related with a verb.The most common verbs in algebra are = ≥ ≤
a + b = b + a
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Evaluating expressions and formulas must follow rules, what are they? | Order of operations
1st perform operations within bracket( ) [ ]
2nd Take powers
3rd Multiply and divide in order from left to right
4th Add and subtract from left to right
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What is an equation? | a sentence stating that two expressions are equal.
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what is a formula? | an equation stating that a single variable is equal to an expression with one or more diff variables on the other side. d = ½gt
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What is a function? | a funcion is a correspondence or pairing between two variables such that each value of the first (independent) variable corresponds to exactly one value of the secnd (dependent) variable.
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Which is the dependent and independent variable in this equation? P = 5H Is P a function of H? | P is dependent variable its value depends on the number of hours worked. H is independent variable.
Yes
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What is the domain of a functon? | the set of values which are allowable substitutions for the independent variable.
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What is the range of a function? | the set of values of the independent variable.
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What is referred to as the input? | The substitutions for the independent variable.
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What is referred to as the output? | The resulting values of the dependent variable.
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What is the purpose of a notation? | parentheses do not stand for multiplication. Instead, they enclose the independent variable.
ie; T(x) = Speed, B(x)= Braking time, S(x) = Stopping distance
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Mapping Notations state what? | both the name of the function and the independent variable.
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What is a relation? | any set of ordered paris, thus every function is a relation.
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Example of Distributive Property | For all real numbers a, b and c.
c(a + b) = ca +cb
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Example of the Opposite of a Sum Theorem | For all real numbers a and b.
-(a + b) = -a + -b
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Created by:
millerlucas8
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