Answer:
The y-intercept is -2
Explanation:
Here, we want to find the y-intercept of the function that passes through the given points
The first thing to do here is to get the coordinates of the needed point;
That would be ; (12,2) and (15,3)
It is just like writing f(x) = a ; x would
be x-value while a will be the y-value
The equation of the line passing through the points will be
y = mx + b
where b represents the y-intercept
Let us start by looking at the slope m
m = (y2-y1)/(x2-x1)
m = (3-2)/(15-12) = 1/3
So the line would be;
y = x/3 + b
now to get b, select any of the points, input the x value and the y value
2 = 12/3 + b
2 = 4 + b
b = 2-4
b = -2