I would say it is considered a binomial
It is given in the question that
A city had population 67,255 on January 1,2000, and its population has been increasing by 2935 people each year since then.
Here initial population , b, is 67255, and the rate of increase of population is 2935 people each year. And that's the value of the slope .
Using slope intercept form, which is

And substituting the values of m and b, we will get

180-50=130
x-y=130
x+y=50
2x=180
x=90
90+y=50
y=50-90
y=-40