A graph of the function y=80x+2

Question

𝑦
=
80
𝑥
+
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

direction traveled
direction traveled

miles traveled

Answer 1

In the context of the function \( y = 80x + 2 \), which models Carli's road trip, the variable \( x \) represents time in hours. Therefore, the quantity that describes the x-axis is:

time in hours