Question

Which of the following functions has an inverse that is not a function?



y = x
y = 2x + 1
y = x²

Answer 1

one of them makes negative numbers into positive numbers, and has
the same y-values twice in its graph.

this one can't have an inverse since the inverse would take the y as input
and it would get for the same y, different xes with is illegal

Answer 2

Thank you!:)

Answer 3

Evaluate 10 + 4(3 + 2) + 5 + (12 ÷ 6).



31
37
41

Answer 4

10 + 4 (5) + 5 + (2)

Answer 5

10+20+5+2
30+7

Answer 6

Nevermind i figured it out thank you though!