Question

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

direction traveled
direction traveled

time in hours
time in hours

miles traveled

Answer 1

In the context of the function \( y = 80x + 2 \) modeling Carli's road trip, where \( y \) represents her speed (in miles per hour) and \( x \) represents time (in hours), the quantity that describes the x-axis is:

**time in hours**.