Determine if the following represent y as a function of x! Please Help!?

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Determine if the following represent y as a function of x! Please Help!?

x+2=y (squared)

2007-05-07 09:31:55 · 3 answers · asked by jose 1 in Science & Mathematics ➔ Mathematics

3 answers

Not according to my modern textbooks, because there are two values of y for each value of x; however, according to my grandfather textbooks from the 1940s it is a function.

N.B. The first answerer is mistaken because the square root of the equation is (x+2)^(1/2)=±y. As you can see there are still two values of y for each value of x.

2007-05-07 09:39:29 · answer #1 · answered by zginder 3 · 0⤊ 0⤋

No as for x>=-2 you get two values of y for each x

2007-05-07 09:43:07 · answer #2 · answered by santmann2002 7 · 0⤊ 0⤋

If you sqrt both sides yea.

2007-05-07 09:35:17 · answer #3 · answered by UnknownD 6 · 0⤊ 1⤋