Answer:
y-intercept is zero
Step-by-step explanation:
The general equation of the line passing through the points is
y = mx + b
where m is the slope and b is the y-intercept
We can pick any two points to get the slope of the line;
m = (55.25-8.5)/(13-2) = 46.75/11 = 4.25
So partially , the equation will be;
y = 4.25x + b
To get b , substitute any point and use its x and y values
We have (2,8.5)
8.5 = 4.25(2) + b
b = 8.5-8.5
b = 0