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Mathematics 17 Online
OpenStudy (ksmd13):

Is the following relation a function?

OpenStudy (ksmd13):

OpenStudy (ksmd13):

Can someone plz explain how you solve this ? .-.

OpenStudy (3mar):

Do you know the vertical line test?

OpenStudy (ksmd13):

Nope

OpenStudy (3mar):

Do you know what is a function is?

OpenStudy (ksmd13):

oh wait so straight lines are functions and curved lines arn't ?

OpenStudy (3mar):

no no no no no no no no no no no no

OpenStudy (3mar):

A function relates an input to an output.

OpenStudy (3mar):

It is like a machine that has an input and an output. And the output is related somehow to the input.

OpenStudy (ksmd13):

Okay, whats the ertical line test ?

OpenStudy (ksmd13):

vertical*

OpenStudy (3mar):

On a graph, the idea of single valued means that no vertical line ever crosses more than one value.

OpenStudy (3mar):

If it crosses more than once it is still a valid curve, but is not a function.

OpenStudy (ksmd13):

so in this question it wouldn't be a function since the line's curved ?

OpenStudy (3mar):

Take that!

OpenStudy (ksmd13):

or not since it didn't go over the line

OpenStudy (3mar):

One minute please

OpenStudy (ksmd13):

sorry take ur time ;-;

OpenStudy (3mar):

Ok I am here!

OpenStudy (ksmd13):

Im reading over the lesson again, I think it's a function ?

OpenStudy (3mar):

Unfortunately not.

OpenStudy (ksmd13):

Oh, what makes it not a function ?

OpenStudy (3mar):

Did you read what I sent?

OpenStudy (ksmd13):

Yes, I assumed is the line goes over the avis it's not a function

OpenStudy (ksmd13):

sorry im really bad at algebra ;-;

OpenStudy (3mar):

No, don't say that!

OpenStudy (3mar):

You will be excellent In Sha' Allah

OpenStudy (ksmd13):

xD tysm for your help i gtg

OpenStudy (3mar):

"tysm"??

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