Answer: Non-proportional
Step-by-step explanation:
While this is a straight line (you can see the graph attached), it is not proportional.
Since Kent had already saved $150, the relationship is not proportional. The $150 dollars is our constant, and a proportional relationship will not have one in this case.
The line must go through the origin for it to be considered "proportional," and the equation created by this scenario does not.
-> The equation would be y = 20x + 150
