functions

Can we say that it is a function?
"of form x = f(y) "

9 Answers

6
Kalyan IIT-K Beware I'm coming ·

no it is not a function
since if you draw a line anywhere on the x-axis , then it cuts the curve at 2 points

what is a function?
basically for a particular input you get only one output.
one to one mapping
correct me if am wrong.

here this is not the case.therefore it is not a function .

6
Kalyan IIT-K Beware I'm coming ·

LOL
i made a post after months :D:P

1
Fermat ·

Your point is absolutely true if it had been given that y = f(x)?

But I doubt whether we can call x = f(y) as a function

1
souradeepmajumde majumder ·

NO THATS NOT GONNA BE A FUNCTION BECAUSE FOR ONE VALUE OF X YOU FIND TWO VALUES OF Y........... BUT YOU KNOOW ONE TO MANY FUNCTION DOES NOT EXIST....

23
qwerty ·

@fermat wat it think is , for the given parabola, y is not a function of x , but x is a function of y , i.e x = f(y)

or just rotate the graph by 90o , it will look like a function

1
souradeepmajumde majumder ·

OH SORRY I WOULD NOT SEE THE SECOND PART.......... IF THIS IS X=F(Y) THEN IT WILL DEFINITELY BE A FUNCTION..............

1
harrys ·

THAT IS A FUNCTION

1
Fermat ·

@ harrys
are you sure

11
Khyati ·

Yeah its a function and I think here y is an implicit function of x

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