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)

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

miles traveled
miles traveled

time in hours
time in hours

direction traveled
direction traveled

speed traveled

GPT-4o mini · Answer

The quantity that describes the x-axis in the context of the function $ y = 80x + 2 $, where $ y $ represents the speed and $ x $ represents the time (including the stops), is: **time in hours**.