Question

Can someone please help me, I've been stuck on this question? (ss below in the comments)

Answer 1

I would agree with statement a since both equations have a negative slope, that means as age increases, number of texts decreases. In other words, younger people tend to send more texts than older people.
I would disagree with b, since the equations tell us nothing about how many people were surveyed by Keiko and Eric.
I would disagree with c. While it is true that a 0-year-old does not send texts, the y-intercept is still meaningful as a way to structure the line for predictions of how many texts people actually send.
I would disagree with d. The -1.63 in Keiko's equation actually means that for every 1 year increase in age, people send on average 1.63 fewer texts.
I would agree with e. Eric's equation shows that for each year someone gets older, they send on average 1.05 fewer texts, which is very close to 1, as the statement says.