Question 206064
Y=mX+b is the line equation where m=slope & b=the Y intercept.
(3,5) and (6,11)
m=(11-5)/(6-3)=6/3=2 is this slope.
Now replace the X & Y terms with one set of values (3,5) & solve for b.
5=2*3+b
5=6+b
b=5-6
b=-1 is the Y intercept.
y=2x-1
{{{ graph( 300, 200, -6, 5, -10, 10, 2x -1) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, 2x -1).