November 25, 2015

Homework Help: math

Posted by Anonymous on Sunday, June 9, 2013 at 12:44am.

Consider the following 6 relations on the set of real numbers:

A) y=2x−5,

B) x2+y2=1,

C) x=20−2y,

D) y=10−x2−−−−−−√,

E) y=2x2−3x+4 and

F) y=|x|
How many of these relations define y as a function of x in the domain −10≤x≤10?

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