is this a function yes or no?
x=5y^(2)

Question

is this a function yes or no?
x=5y^(2)

anonymous · Answer

What is the definition of a function? Is there a test you know of to tell if something is a function or not?

campbell_st · Answer

nope... as it fails the vertical line test and each x value maps to 2 y values

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anonymous · Answer

You need to graph the question; by definition, the line so formed should not cross vertical line more than once.
So, it's not.

anonymous · Answer

process of showing the relationship btwn the input and out of a problem.

anonymous · Answer

thank you all of you for all your help!

goformit100 · Answer

Yo Yo Conic Sections.

goformit100 · Answer

Thamks @Callisto

anonymous · Answer

You can also sometimes see this using algebra. The equation is given with x isolated, but normally standard form of equations has y, or f(x), isolated. If you isolate for y  $$y ^{2} = \frac{ x }{ 5 }$$$$\pm y =\sqrt{\frac{ x }{ 5 }}$$$$y = \pm \sqrt{\frac{ x }{ 5 }}$$That plus/minus in from of the y, which happens whenever you "undo" a squared variable, means there are two options, a negative and a positive. If y is a negative number, then it becomes positive when it is squared.