Which equation does not represent y as a function of x? explain why? a) x= -6y+5 b) x= 3 c) y= -4x+5 d) y= |1-3x^2| e) y= √(2+7x)
Follow Math Help Forum on Facebook and Google+
b)......there is no y at all
Originally Posted by ukorov b)......there is no y at all so there has to be a X and Y?
Originally Posted by refresh so there has to be a X and Y? of course , a function maps an object x from one set to an image y in the other set . In short f(x)=y
Originally Posted by refresh so there has to be a X and Y? Tell me this- do you know what the definition of "function" is? And if you don't, why in the world would you expect to be able to do this problem until you had looked up the definition.
View Tag Cloud