Question

Is the following relation a function?

My answer is no

Am I right?

Answer 1

you said "no" because...?

Answer 2

Oops! I meant too say yes because it is not a function if there are any repeating x variables

Answer 3

it's asking if it's a function, so you're saying "yes it is a function" ?

Answer 4

Yes

Answer 5

if you plug in x = 2, what is the output?

Answer 6

think of it like a conversion from meters to feet, if you plug in some measurement in meters into this function, you should get EXACTLY ONE result

if you wanted to convert 2 meters to feet, you shouldn't get more than one result...or else, which one would you pick? which one is the true equivalent of 2 meters?