HELP, PLEASE! FAN and MEDAL

Which of the following expressions represents a function?

y = x2
{(9, 2), (4, –2), (5, 3), (9, –4)}
x = –3
x2 = 25 − y2

Question

HELP, PLEASE! FAN and MEDAL

Which of the following expressions represents a function?

 y = x2
 {(9, 2), (4, –2), (5, 3), (9, –4)}
 x = –3
 x2 = 25 − y2

anonymous · Answer

Which of the following expressions is the inverse of the function y = 2x − 6?

 y equals quantity x minus 6 divided by 2
 y equals quantity x plus 6 divided by 2
 y = 2x + 6
 y = –2x + 6

anonymous · Answer

Consider the function f(x) = x2 − 2x + 6. Find the value of f(x) when x = 3 and select the correct answer below.

 1
 3
 6
 9

anonymous · Answer

1 Q per thread please (:

anonymous · Answer

lol ok, sorry. can you help me? @Aureyliant