What is a function in math

Mathematics

2 answers:

Doss [256]3 years ago

6 0

It is a relationship/expression that involves one or more variables.

murzikaleks [220]3 years ago

4 0

A function is a relation between a set of inputs and a set of permissible outputs with the property that each input is related to exactly one output.
*An example is the function that relates each real number x to its square x2.

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Double a number is equal to the number decreased by five?

kotegsom [21]

2n=n-5 subtract n from both sides

n=-5

check...

2(-5)=(-5)-5

-10=-10

6 0

3 years ago

[3x^(2/3)] • [7x^(1/4)] photo of equation above

aalyn [17]

$\bf a^{\frac{ n}{ m}} \implies \sqrt[ m]{a^ n}
\qquad \qquad
\sqrt[ m]{a^ n}\implies a^{\frac{ n}{ m}}
\\\\[-0.35em]
\rule{34em}{0.25pt}\\\\
\left( 3x^{\frac{2}{3}} \right)\left( 7x^{\frac{1}{4}} \right)\implies 3\cdot 7x^{\frac{2}{3}}\cdot x^{\frac{1}{4}}\implies 21x^{\frac{2}{3}+\frac{1}{4}}\implies 21x^{\frac{(4)2+(3)1}{12}}
\\\\\\
21x^{\frac{11}{12}}\implies 21\sqrt[12]{x^{11}}$