Question

You start out driving from your house to an old friends house in a different town, which is 280 miles away. after an hour and a half, you have gone 105 miles. assuming your speed is constant, find a linear function d(t), which gives the distance from your house (in miles) as a function of time (in hours)

Answer 1

v=105/1.5=70
d=vt
d(t)=70t
The answer is 70t

Answer 2

v=d/t, velocity equals distance divided by time

v=105/1.5=70mph

d=vt

d(t)=70t