Ask your own question, for FREE!
Mathematics 83 Online
OpenStudy (anonymous):

describe the graphs of the relations y=3 and x=3. are these relations functions? explain

OpenStudy (oaktree):

For x=3, it basically means that for every point on the graph, the x value will be 3.

OpenStudy (oaktree):

So, it is not a function. It is is just a vertical line, and therefore fails the vertical line test.

OpenStudy (oaktree):

However, y=3 means all the y values are 3, so it's a horizontal line.

OpenStudy (oaktree):

That is a function.

OpenStudy (oaktree):

So, there's a way to remember these two.

OpenStudy (oaktree):

It's "HOY VUX" - HOY means Horizontal, slope O, and Y=something.

OpenStudy (oaktree):

VUX means Vertical line, slope Undefined, and X=something.

OpenStudy (oaktree):

All clear?

OpenStudy (anonymous):

yes thankyou very much

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!