In order to determine the equation of the line, use the following genereal equation:
y - yo = m(x - xo)
where (xo,yo) is a point of the line and m is the slope, which is given by:
m = (y2 - y1)/(x2 - x1)
where (x1,y1) and (x2,y2) are two points of the line. Use the points (0,3) and (1,1):
m = (1 - 3)/(1 - 0)
m = -2/1
m = -2
next, replace the previous value of m and one point of the line in the general equation:. Use the point (0,3):
y - 3 = -2(x - 0)
y - 3 = -2x
next, solve for y:
y = -2x + 3
Hence, the equation of the given line is y = -2x + 3