Answer:
Step-by-step explanation:
Yes it is because it is a straight line.
(I hope it helps, because i'm just learning about this meself so...)
A.
type A: Y= 15x +36
type B: Y= 10x + 48
B.
15x +36= 10x+48
5x=12
x= 2.4
2.4 years
C.
72 inches
4.5 miles per hour