Question

College calculus help, figuring out the domain of a linear function.

Answer 1

I'm not sure where they got their domain from. I thought it would be (negative infinity, positive infinity) but it isn't.

Answer 2

They are only using the line "segment" joining the pionts.

Answer 3

Ohhh. I get it. Thank you!!

Answer 4

Thanks for asking :-)

Answer 5

Thanks for answering!

Answer 6

:D

Answer 7

Learning to read the problem carefully and thinking about its meaning is an important skill in math.