Answer:
y=x
Explanation:
y= mx+b
Pick any points that are on the line; for example (1,1) and (2,2)
for (x1=1, y1=1) and (x2=2, y2=2)
m = (y2-y1) /(x2-x1) = (2-1)/(2-1) = 1/1 = 1
If slope m = 1 then the equation is y = x+b now
Pick any point that is on the line again and substitute the coordinate in our equation to find b (the y-intercept) ; for example point (0,0) is on the line.
y = x+b, for (x=0, y=0) is
0 = 0 +b
0 =b
The equation in the slope intercept form of the given line is y = x, because the slope m=1 and the y-intercept , b=0