What's 1/2 x 3 1/2, I'm only in 6th grade so I don't know much, if you respond with the correct answer, thank you a lot.
2 answers:
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The first relation gives two y-values for any given x-value (except x=6).
y² +x = 6 . . . . . is not a function
y² +x = 6 . . . . . is not a function
