Question

Is f(x)=x^3+4 a one-to one function?

Answer 1

do you know what one to one means? Think about this in relation to the range and domain of the function

Answer 2

I think it means it has to pass both the vertical and horizontal line test... Right?

Answer 3

yes. does it have any of those

Answer 4

That's why I asked, becasue when I graph it in my calculator, it looks like it has a place it the middle where it flattens out.

Answer 5

but can you draw a horizontal line that NEVER crosses the function

Answer 6

No?

Answer 7

then it passes the horizontal line test even if it levels out for a little bit. I see the confusion though good question

Answer 8

Oh, okay. C: What about 6x^3-3?

Answer 9

same type of question. the graph looks very similar to the one above just shifted a little, does it pass both tests?

Answer 10

Yes? :D

Answer 11

good job!

Answer 12

Woot woot. Thanks! c: God bless!