Which of the following represents as function?
A.{(1, 2), (4, –2), (8, 3), (9, –3)}
B.y2 = 16 − x2
C.2x^2 + y^2 = 5
D. x = 7

Question

Which of the following represents as function?
A.{(1, 2), (4, –2), (8, 3), (9, –3)} 
B.y2 = 16 − x2 
C.2x^2 + y^2 = 5
D. x = 7

texaschic101 · Answer

A is a function because it has no repeating x values

anonymous · Answer

Thanks can I ask you another question?
For the functions f(x) = 5x − 3 and g(x) = x + 4, which composition produces the greatest output?
 A.f(g(x)) produces the greatest output.
B. g(f(x)) produces the greatest output.
C. Both compositions produce the same output. 
D. Neither composition produces an output.
@texaschic101