Question

how to tell if a graph is a function or not o_o?

Answer 1

vetical line test. sound familiar?

Answer 2

no.. never heard of it , my teacher never taught me it. dont get it on the book.

Answer 3

well i heard of it.. dont get it tho..

Answer 4

is it the graph can't be touched twice when theres an imaginary vertical line?

Answer 5

yes

Answer 6

any exception or anything? lols

Answer 7

for example

function:

not a function

Answer 8

exceptions? i think so...if i recall right...radical functions lie to the test

Answer 9

oh its horizontal line .. not vertical o_O

Answer 10

thanks man

Answer 11

that's vertical

Answer 12

oh shoot , confused myself LOOOOOOOL