Question

A graph of the function y=80x+2
models Carli’s road trip, with her speed measured in miles per hour. The graph includes the two hours of stops she’ll make. Using this information, define which quantity describes the x-axis.(1 point)
Responses

speed traveled
speed traveled

time in hours
time in hours

miles traveled
miles traveled

direction traveled

Answer 1

In the context of the function \( y = 80x + 2 \), where \( y \) represents Carli’s speed in miles per hour and \( x \) represents the time in hours (including the hours of stops), the x-axis represents:

**time in hours**

So, the correct response is: **time in hours**.