sites.csn.edu/jmartin/096videos/096worksheet8-2.pdf

Remark 4 Determining whether a relation is a function is pretty straight forward ... Definition We say an equation defines y as a function of x if each x-value.

www.sparknotes.com/math/algebra2/functions/section1.rhtml

In the relation , y is a function of x , because for each input x (1, 2, 3, or 0), there is only one output y . x is not ... The Line Test for Mapping Diagrams. To check if a relation is a function, given a mapping diagram of the relation, use the following ...

www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-linear-equations-functions/cc-8th-function-intro/v/recognizing-functions-example-4

Sal determines if y is a function of x from looking at an equation.

www.quora.com/In-algebraic-functions-how-do-you-determine-whether-Y-is-a-function-of-X

If the graph passes a vertical line test, then y can be a function of x. Here's a reference (also contains a list of more solid references in case you need a...

www.quora.com/How-do-you-find-out-if-a-equation-defines-y-as-a-function-of-x

You have to remember we like precision in mathematics, what that question is really asking is do you remember the definition of a function and ...

www.algebra.com/algebra/homework/Functions/Functions.faq.question.585845.html

... how to determine whether the equation defines y as a function of x. is it a function ... We can forgive a function if some values of x do not have a y, but if there is ...

academics.utep.edu/Portals/1788/CALCULUS%20MATERIAL/1_4%20FNS.pdf

Determine whether the relation represents y as a function of x. a. The input value x is the number of representatives from a state, and the output value y is the ...

www.algebra.com/algebra/homework/Functions/Functions.faq.question.656751.html

You can put this solution on YOUR website! y² = 7x It is not a function because, for instance, (7,7) and (7,-7) are both solutions, since: (7)² = 7(7) 49 = 49 But also ...