Aubrey and Charlie are driving to a city that is 120 miles from their house. They have already traveled 20 miles, and they are driving at a constant rate of 50 mi/h. Write a function that models the distance they drive as a function of time. What is a reasonable domain for this situation?
Function notation in slope-intercept form: _______
A reasonable domain is ≤ x ≤
f(x) = 50x + 20
y= 50x + 20
120 = 50(2) + 20
0 <(or equal to) x <(or equal to) 2