Question

Use the vertical line test to determine which of the following graphs represents a function.

Select all correct answers.

Answer 1

@snowflake0531 @AZ

Answer 2

whole bunch of images, let's not get them confused

do you remember what the vertical line test is?

Answer 3

yep

Answer 4

Yep!!

Answer 5

so which ones can you draw a vertical line | through it and it only touches that line once

Answer 6

the vertical line can be at any place?

Answer 7

yes, and you can/should draw multiple of them to check all over the graph because imagine you had

Answer 8

if it only touches once is it a function?

Answer 9

It only passes through the line once! But can we say it passes the vertical line test? No!!!!



Because see

Answer 10

\(\color{#0cbb34}{\text{Originally Posted by}}\) @iuytyuioiuytyuiop
if it only touches once is it a function?
\(\color{#0cbb34}{\text{End of Quote}}\)

That's correct!

Answer 11

you have to make sure that through the entire graph, it only touches once

Answer 12

is it A, B, and C?

Answer 13

Those are correct but there's one more

so now look at D and E

Do you know what that empty circle means?

It basically means that point isn't included

so if you have two full solid blue points in the same line, then it is NOT a function

but if one circle is empty and the other one is a solid in the same line, then it IS a function

Answer 14

does that make sense?

Answer 15

its also D because the empty circle means its not there?

Answer 16

yup!

Answer 17

but E?

Answer 18

but E has two full circles so that means it's there at both points so it wouldn't pass the vertical line test

Answer 19

I didnt say its E you mentioned E soooooooo!!!!!!! LOL

Answer 20

ah, yes

I just wanted to make you aware to their similarities so that way you could then differentiate between them and choose the correct one haha