Problema Solution
A car is initially 40 miles south of the border between two states and is traveling south. Distances D between the car and the border are recorded in the table for various elapsed time t. Find a linear function given by D(t)=at+b that ,Odell's these data.
t (hours) 0 1 2 4
D (miles) 40 70 100 160
What is the linear function modeled by the data?
D(t)=
Answer provided by our tutors
D(t) = 30x + 40
'30' is determined as the slope:
(70-40)/(1-0) = 30
'40' is determined by the value when t=0